, cbse class 11 biology chapter wise important questions - free pdf download.
CBSE Important Questions for Class 11 Biology are available in Printable format for Free Download.Here you may find NCERT Important Questions and Extra Questions for Class 11 Biology chapter wise with answers also. These questions will act as chapter wise test papers for Class 11 Biology. These Important Questions for Class 11 Biology are as per latest NCERT and CBSE Pattern syllabus and assure great success in achieving high score in Board Examinations
Class 11 Biology Marks Distribution | |
---|---|
Units | Marks |
Diversity of Living Organisms | 15 |
Structural Organisation in Plants and Animals | 8 |
Cell: Structure and Function | 15 |
Plant Physiology | 15 |
Human Physiology | 17 |
Total | 70 |
Biology Topics to be covered for Class 11 Science
Structure of CBSE Biology Sample Paper for Class 12 Science is
Type of Question | Marks per Question | Total No. of Questions | Total Marks |
---|---|---|---|
Very Short Answer Type Questions | 1 | 5 | 5 |
Short Answer Type Questions - 1 | 2 | 7 | 14 |
Short Answer Type Questions - 2 | 3 | 12 | 36 |
Long Answer Type Questions | 3 | 5 | 15 |
Total | 27 | 70 |
For Preparation of exams students can also check out other resource material
CBSE Class 11 Biology Sample Papers
CBSE Class 11 Biology Worksheets
CBSE Class 11 Biology Question Papers
CBSE Class 11 Biology Test Papers
CBSE Class 11 Biology Revision Notes
Importance of Question Bank for Exam Preparation?
There are many ways to ascertain whether a student has understood the important points and topics of a particular chapter and is he or she well prepared for exams and tests of that particular chapter. Apart from reference books and notes, Question Banks are very effective study materials for exam preparation. When a student tries to attempt and solve all the important questions of any particular subject , it becomes very easy to gauge how much well the topics have been understood and what kind of questions are asked in exams related to that chapter.. Some of the other advantaging factors of Question Banks are as follows
To Prepare better for CBSE paperclass; ?> " title="Download Free CBSE Papers">Ribblu.com brings to you all the previous years papers & worksheets of subject; ?//> for CBSE paperclass; ?>. This CBSE paper and worksheet can be instrumental in students achieving maximum marks in their exams. These Papers and worksheets help students gain confidence and make them ready to face their school examinations. These Papers and worksheets school wise, covers important concepts from an examination perspective. Students and parents can download all the available papers & worksheets directly in the form of PDF. One can use these papers and worksheets to get extensive practice and familiarise themselves with the format of the question paper.
Be the first to write comment .
Upload papers and the more your paper get downloaded the more you earn the points
You may send papers on email [email protected] along with userid
1. | The uploaded material should be original and not duplicated. |
2. | It should be clear, legible and genuine. The file type should be pdf for multiple pages and jpg is allowed only for single page document. Use apps like “cam scanner” for mobile capture, crop and edit photos and save it as pdf. One file should be complete in all aspects like one full question paper, Notes of a complete topic. File name should be self explanatory (eg. CBSE 10th 2012 hindi question paper by – ‘Name of the uploader’) |
3. | No copyright violations allowed. |
4. | Points and coupons will be given at the sole discretion of Ribblu. |
5. | Ribblu admin has the power to reject, remove, alter, approve, accept any material that is uploaded by the user without consent of owner. |
Report this paper, how to earn points.
Upload Papers / Worksheets and Earn 50 Points.
The uploaded material should be original paper or worksheet of any school. Check out some videos on how to upload papers on ribblu
Rate & Review your school and Earn 25 Points.
Review any school that you may be knowing and once your review is approved, you will be credited with 25 points.
Answer on question posted on JustAsk and earn 15 points.
JustAsk is a platform where you can help others to find answers of any question. Share your Knowledge. Answer questions and once approved you will earn 15 points
Complete your profile and earn upto 25 Points.
Edit and complete your user profile and earn points. The more details you submit, the more points you will earn.
Download Ribblu Mobile App and you will (Earn 20 Points) (one time only)
Gurukul of Excellence
Classes for Physics, Chemistry and Mathematics by IITians
Join our Telegram Channel for Free PDF Download
Chapter 1: The Living World Chapter 2: Biological Classification Chapter 3: Plant Kingdom Chapter 4: Animal Kingdom Chapter 5: Morphology of Flowering Plants Chapter 6: Anatomy of Flowering Plants Chapter 7: Structural Organisation in Animals Chapter 8: The Unit of Life Chapter 9: Biomolecules Chapter 10: Cell Cycle and Cell Division Chapter 11: Transport in Plants Chapter 12: Mineral Nutrition Chapter 13: Photosynthesis in Higher Plants Chapter 14: Respiration in Plants Chapter 15: Plant Growth and Development Chapter 16: Digestion and Absorption Chapter 17: Breathing and Exchange of Gases Chapter 18: Body Fluids and Circulation Chapter 19: Excretory Products and Their Elimination Chapter 20: Locomotion and Movement Chapter 21: Neural Control and Coordination Chapter 22: Chemical Coordination and Integration
Editable Study Materials for Your Institute - CBSE, ICSE, State Boards (Maharashtra & Karnataka), JEE, NEET, FOUNDATION, OLYMPIADS, PPTs
Looking for NCERT Solutions for Class 11 Biology for Chapter 2 Biological Classification? Look no further because we at BYJU’S, have got students covered. NCERT Solutions are proven to be the go-to resource for students following the latest update on the CBSE Syllabus 2023-24. They are apt resources for students who are looking for the most precise and accurate solutions to all the questions and are completely reliable sources.
BYJU’S offers NCERT Solutions for Class 11, which can be readily accessed and downloaded at the convenience of students. These solutions have been created with the aim of benefitting students with their first board exam preparations; hence they have been framed by professionals having years of experience with the same. Biology is a vast subject, constantly evolving and advancing with developments in the fields of science and technology. In the quest of learning concepts in an interesting approach, revision of concepts are always better if backed with a thorough review from NCERT Solutions for Class 11 Biology , available in a downloadable format at BYJU’S.
carouselExampleControls111
1. Discuss how classification systems have undergone several changes over a period of time.
Aristotle was the first to introduce scientific classification. He used simple morphological characters to classify plants into trees, shrubs, and herbs. He divided the animals into two groups, one with red blood and one without.
Linnaeus introduced a two-kingdom classification, which includes Plantae and Animalia, respectively, of plants and animals. But this classification does not classify eukaryotes and prokaryotes, single-celled and multicellular organisms, photosynthetic (green algae) and non-photosynthetic (fungal) organisms. Therefore, the system was found to be less significant as it did not include more features.
Thus, the classification of living organisms has undergone several changes. R.H. Whittaker introduced a five-kingdom classification, including Monera, Protista, Fungi, Plantae and Animalia. Some of the characteristics included in this classification are the structure of cells, body organisation, mode of nutrition, mode of reproduction, and phylogenetic relationship to classify organisms. Subsequently, a three-domain system was proposed, which divided Kingdom Monera into two domains, leaving the remaining eukaryotic kingdoms in the third domain, thereby classifying the six kingdoms.
2. State two economically important uses of:
(a) heterotrophic bacteria
(b) archaebacteria
a) Heterotrophic bacteria are used in the production of vitamins, antibiotics, cheese and curd.
They help fix nitrogen and are used in the formation of humus.
b) Archaebacteria are used in Biogas production.
They are used in the bioleaching of mines.
3. What is the nature of cell walls in diatoms?
In diatoms, cell walls are embedded with silica imparting characteristic patterns onto the walls and are indestructible. These diatoms leave large amounts of cell wall deposits in their habitat to accumulate to form the diatomaceous earth.
4. Find out what the terms ‘algal bloom’ and ‘red tides’ signify.
Algal blooms are found in contaminated water. They are an overgrowth of algae, especially blue-green algae (cyanobacteria). Their growth leads to water pollution. They inhale carbon dioxide and exhale oxygen.
Rapid multiplication of red-pigmented dinoflagellates, such as Gonaulax , gives the sea a red colour, a phenomenon known as red tides. These algae produce toxins that kill fish and other aquatic organisms.
5. How are viroids different from viruses?
(i) Viroids are small infectious agents with single-stranded RNA without a protein coat, but viruses have single-stranded or double-stranded RNA bound with a protein coat.
(ii) Viroids are very small in size compared to viruses.
(iii) Viroids infect only plants, while viruses infect plants, animals, and microorganisms.
6. Describe the four major groups of Protozoa briefly.
Four major groups of Protozoa are as follows:
Amoeboid protozoans: Found in the aquatic environment, they move and catch their prey using pseudopodia.
Flagellated protozoans: These protozoans are free-living or parasitic. Their locomotory structure is flagella.
Ciliated protozoans: They live in aquatic environments, and the presence of cilia makes them actively moving.
Sporozoans: They contain a wide variety of organisms, producing infectious spores throughout their life cycle. Their spore-like phase helps them move from one host to another.
7. Plants are autotrophic. Can you think of some plants that are partially heterotrophic?
Insectivores and carnivorous plants are partially heterotrophic; these organisms are green and autotrophic, but they prey on and digest small components for their nitrogen supply.
Ex; Utricularia, Drosera, Nepenthes.
8. What do the terms phycobiont and mycobiont signify?
Lichens are a symbiotic association of fungi and algae. Phycobiont is part of algae and part of mycobiont fungi. Mycobiont provides structural cover that protects the algae from unfavourable conditions. Similarly, phycobionts prepare food through the process of photosynthesis, which is used by both organisms.
9. Give a comparative account of the classes of Kingdom Fungi under the following:
(i) mode of nutrition (ii) mode of reproduction
Phycomycetes | Ascomycetes | Basidiomycetes | Deuteromycetes | |
Mode of nutrition | Saprophytic or parasitic | Decomposers, Saprophytic or parasitic or coprophilous | Saprophytic | Decomposers, Saprophytic or parasitic |
Mode of reproduction | Asexual reproduction by zoospore (motile) and Aplanospore (non-motile) Sexual reproduction – zygote can be similar or dissimilar in morphology | Through asexual spores called conidia, and sexual spores are known as ascospores | By vegetation reproduction through budding. The fusion of two somatic cells for the formation of basidiospores is Plasmogamy | Through asexual spores called conidia. |
10. What are the characteristic features of Euglenoids?
The typical features of Eugenoids are:
(i) Absence of cell wall.
(ii) Their body is flexible because there is a protein-rich layer called a pellicle.
(iii) Two flagella of different lengths are found.
(iv) They are autotrophic in the presence of sunlight and heterotrophic in the absence of sunlight.
11. Give a brief account of viruses with respect to their structure and nature of genetic material. Also, name four common viral diseases.
Viruses are infectious agents that crystallise in structure when found outside the host cell. The genetic material is either DNA or RNA (never both), and they are located within the protein core. If the virus that infects plants has single-stranded RNA, then the viruses that infect animals are single or double-stranded DNA or RNA. The capsid is their protein coat, which in turn is made up of small subunits called capsomers, which protect nucleic acid.
Common viral diseases are Influenza, AIDS, Herpes and Rabies.
12. Organise a discussion in your class on the topic ‘Are viruses living or nonliving’?
Non-living Characters
(i) No cellular structure
(ii) They can be stored in bottles like crystals
(iii) There will be no energy storage or energy liberation systems
(iv) They cannot grow or multiply outside the host
Living Characters
(i) They are host-specific
(ii) The presence of genetic material
(iii) The ability to multiply
(iv) They have antigenic properties
(v) They are obligate parasites
(vi) Mutations occur
List of subtopics covered in Chapter 2 – Biological Classification
2.1 | Kingdom Monera |
2.2 | Kingdom Protista |
2.3 | Kingdom Fungi |
2.4 | Kingdom Plantae |
2.5 | Viruses, Viroids, Prions And Lichens |
Simple differences in the morphological characteristics initially led to the classification of plant and animal species, which further paved the way for classification that was backed by definite scientific research and study. The main criteria for the five-kingdom classification were body organisation, cell structure, mode of nutrition, reproduction, and phylogenetic relationships. In this kingdom of classification, bacteria were included in the Kingdom Monera, while bacteria are cosmopolitan in the distribution.
These entities exhibit tremendous metabolic diversity. Where entities belonging to Kingdom Protista include single-celled eukaryotes, species of Kingdom Fungi exhibit great diversity in their habitat and structure. Kingdom Plantae compromises all eukaryotic chlorophyll-containing entities, while Kingdom Animalia includes heterotrophic eukaryotic, multicellular entities that lack a cell wall.
Explain the characteristic features of euglenoids from chapter 2 of ncert solutions for class 11 biology., what are the concepts important from the exam point of view in the ncert solutions for class 11 biology chapter 2, what are the benefits of using ncert solutions for class 11 biology chapter 2, leave a comment cancel reply.
Your Mobile number and Email id will not be published. Required fields are marked *
Request OTP on Voice Call
Post My Comment
Register with byju's & watch live videos.
CBSE Expert
We have provided here Case Study questions for Class 11 Biology for final board exams. You can read these chapter-wise Case Study questions. These questions are prepared by subject experts and experienced teachers. The answer key is also provided so that you can check the correct answer for each question. Practice these questions to score well in your exams.
CBSE 11th Standard CBSE Biology question papers, important notes, study materials, Previous Year Questions, Syllabus, and exam patterns. Free 11th Standard CBSE Biology books and syllabus online. Important keywords, Case Study Questions, and Solutions.
CBSE Class 11 Biology question paper will have case study questions too. These case-based questions will be objective type in nature. So, Class 11 Biology students must prepare themselves for such questions. First of all, you should study NCERT Textbooks line by line, and then you should practice as many questions as possible.
Class 11 MCQ Questions
Class 11 students should go through important Case Study problems for Biology before the exams. This will help them to understand the type of Case Study questions that can be asked in Grade 11 Biology examinations. Our expert faculty for standard 11 Biology have designed these questions based on the trend of questions that have been asked in last year’s exams. The solutions have been designed in a manner to help the grade 11 students understand the concepts and also easy to learn solutions.
Save my name, email, and website in this browser for the next time I comment.
Key Features
No thanks, I’m not interested!
NCERT Solutions for Class 6, 7, 8, 9, 10, 11 and 12
July 16, 2019 by phani
Topics and Subtopics in NCERT Solutions for Class 11 Biology Chapter 2 Biological Classification :
2 | Biological Classification |
2.1 | Kingdom Monera |
2.2 | Kingdom Protista |
2.3 | Kingdom Fungi |
2.4 | Kingdom Plantae |
2.5 | Kingdom Animalia |
2.6 | Viruses, Viroids and Lichens |
2.7 | Summary |
NCERT Solutions Class 11 Biology Biology Sample Papers
1.Discuss how classification systems have undergone several changes over a period of time? Soln. Biological classification is the scientific procedure of arranging organisms in a hierarchical series of groups and sub-groups on the basis of their similarities and dissimilarities. Scientists have proposed different systems of classification which have undergone several changes from time to time. Earlier Aristotle proposed artificial system of classification, which divided animals and plants on basis of habitat. E.g., Aquatic (fish, whale), terrestrial (e.g., reptiles, cattle) and aerial (e.g., bat, birds). Then, natural system of classification was based on morphology^ anatomy, physiology, reproduction, ontogeny, cytochemistry, etc. After natural system, organisms were classified on basis of evolutionary relationships called phyloge¬netic system. It is based on cytotaxonomy, chemotaxOnomy, numerical taxonomy and cladistic taxonomy.
2.State two economically important uses of: (a) heterotrophic bacteria (b) archaebacteria Soln. (a) Heterotrophic bacteria: They include saprotrophic, symbiotic and parasitic bacteria. They act as natural scavengers as they dispose off the dead bodies, organic wastes, release raw materials for reutilisation. They also help in sewage disposal, manure production etc. Symbiotic bacteria help in nitrogen fixation. Some bacteria arq employed in the production of a number of industrial products like lactic acid, curd, cheese, butter, vinegar etc. Some bacteria are used in preparation of serum, vaccines, vitamins, enzymes, antibiotics etc. e.g., Pseudomonas, Xanthomonas, etc. (b) Archaebacteria : Archaebacteria are employed in the production of gobar gas from dung and sewage and in ruminants, they cause fermentation of cellulose.
More Resources for CBSE Class 11
3.What is the nature of cell-wall in diatoms? Soln. The cell walls of diatoms are called frustules. The cell wall is chiefly composed of cellulose impregnated with glass-like silica. It is composed of two overlapping halves (or theca) that fit together like two parts of a soap box or petri dish. The upper half (lid) is called epitheca and the lower half (case) is called hypotheca. The outer covering possesses very fine markings, pits, pores and ridges. The siliceous frustules of diatoms do not decay easily. They pile up at the bottom of water reservoirs and form big heaps called diatomite or diatomaceous earth. It may extend for several hundred metres in certain areas from where the same can be mined.
4.Find out what do the terms ‘algal bloom’ and ‘red tides’ signify. Soln. The rapid increase in populations of algae and other phytoplanktons, in particular cyanobacteria, in water bodies rich in organic matter is called algal bloom. The density of the organisms may be such that it may prevent light from passing to lower depths in the water body. Algal blooms are caused by an increase in levels of nitrate, a mineral ion essential for algal and bacterial growth. The source of increased nitrate may be from agricultural fertilizers, which are leached – into water systems from the land, or sewage effluent. Red tides are caused by a sudden, often toxic proliferation of marine phytoplankton, notably dinoflagellates, that colour the sea red, brown, or yellowish due to the high concentration of the photosynthetic accessory pigments. Some dinoflagellates, such as Gonyaulax, produce potent toxins, which may kill fish and invertebrates outright or accumulate in the food chain, posing a hazard to humans eating shellfish and other seafood. These phytoplanktonic blooms may be related to nutrient-rich inputs from the land, or upwelling oceanic waters, and are initiated by the activation of cyst-like forms lying on the sea bed.
5.How are viroids different from viruses? Soln. Viroids are the smallest known agent of infectious diseases that contain small single-stranded RNA molecule. They lack capsid and have no proteins associated with them. Viroids infect only plants. Whereas, viruses have genetic material surrounded by a protective coat of protein or lipoprotein. The genetic material of viruses are of 4 types – double-stranded DNA, double-stranded RNA, single-stranded DNA, single-stranded RNA. They infect both plants and animals.
6.Describe briefly the four major groups of protozoa. Soln. All protozoans are heterotrophs and live as predators or. parasites. They are be-lieved to be primitive relatives of animals. They are classified into four groups on the basis of locomotory organelles. (i) Amoeboid protozoans : These organisms live in fresh water, sea water or moist soil. They move and capture their prey by developing pseudopodia (false feet) as in Amoeba. Some of them such as Entamoeba are parasites. (ii)Flagellated protozoans : The members of this group are either free-living or parasitic. They have flagella for locomotion. The parasitic forms cause diseases such as sleeping sickness e.g., Trypanosoma. (iii)Ciliated protozoans : These are aquatic, actively moving organisms because of the presence of thousands of cilia. They have a cavity (gullet) that opens to the outside ‘ of the cell surface. The coordinated movement of rows of cilia causes the water laden with food to be steered into the gullet e.g., Paramecium. ~ (iv)Sporozoans: This includes diverse parasitic organisms that have an infectious spore¬like stage in their life cycle. Locomotory organs are absent. The most notorious N . is Plasmodium (malarial parasite) which causes malaria which has a staggering effect on human population.
7.Plants are autotrophic. Can you think of some plants that are partially heterotrophic? Soln. Some insectivorous plants like Drosera, Nepenthes, Utricularia are partially heterotrophic plant. These plants are deficient in nitrogen content but are otherwise autotrophic. They, trap various insects to obtain nitrogen from them. Rest, the food i.e., carbohydrate is manufactured by themselves.
8.What do the terms phycobiont and mycobiont signify? Soln. A lichen is structurally organised entity consisting of the permanent association of a fungus and an alga. The fungal component of a lichen is called mycobiont and the algal component is called phycobiont. Both mycobiont and phycobiont are associated in symbiotic union in which the fungus is predominant and alga is subordinate partner. – ; Fungus provides the structural covering that protects alga from unfavourable conditions, i.e., drought, heat, etc. It also traps moisture from the atmosphere and anchors the lichen to a rock, tree bark, leaves and other similar supports. The alga prepares organic food by the process of photosynthesis from carbon dioxide. If the algal component is cyanobacteria (blue-green alga), they fix atmospheric nitrogen in addition to preparation of food.
9.Organise a discussion in your class on the topic – ‘Are viruses living or non-living’? Soln. Viruses are regarded as intermediate between non-living entities and living organisms. It is very difficult to ascertain whether they are living or non-living. Some . characters of viruses suggest their non-living nature whereas many other characters suggest their living nature. They resemble non-living objects in – (i) Lacking protoplast. (ii)Ability to get crystallised. (iii)Inability to live independent of living cell. (iv)High specific gravity which is found .only in non-living objects. (v)Absence of respiration. (vi)Absence of energy storing system. (vii)Absence of growth and division. Instead different parts are synthesized separately. Viruses resemble living beings in – (i)Being formed of organic macromolecules which occur only in living beings. (ii)Presence of genetic material. (iii)Ability to multiply or reproduce although only inside living cell. (iv)Occurrence of mutations. (v) Occurrence of enzyme transcriptase in most viruses. (vi)Some viruses like Pox virus contains vitamins like riboflavin and biotin. (vii)Infectivity and host specificity. (viii)Viruses are ‘killed’ by autoclaving and ultraviolet rays. (ix)They breed true to their type. Even variations are inheritable. (x) They take over biosynthetic machinery of the host cell and produce chemicals required for their multiplication. (xi)Viruses are responsible for a number of infectious’ diseases like common cold, epidemic influenza, chicken pox.
10.What are the characteristic features of Euglenoids? Soln. The euglenoid flagellates are the most interesting organisms having a mixture of animal and plant characteristics. The characteristic features are: (i) They are unicellular flagellates. (ii)These protists lack a definite cellulose cell wall. Instead the cells are covered by a thin membrane known as pellicle. The pellicle is composed of protein, lipid and carbohydrates. (iii)One or two flagella which help these protists in active swimming are present. If two flagella are present, then one is long and other is short. They are tinsel – shaped i.e., with two longitudinal rows of fine hairs. Each flagellum has its own basal granule. The two flagella join with each other at a swelling, called paraflagellar body and finally only one long flagellum emerges out through the cytostome. (iv)Cell at the anterior end possesses an eccentric mouth or cytostome which leads into a flask-shaped cavity viz. gullet or cytopharynx. Gullet opens into a large basal reservoir. (v) At one end of the reservoir, the cytoplasm contains an orange red stigma (eye spot). The eye spot is a curved plate with orange-red granules and contains red pigment astaxanthin. Both paraflagellar body and eye spot act as photoreceptors. (vi)Just below the reservoir is found a contractile vacuole having many feeding canals. The contractile vacuole takes part in osmoregulation. It expands and pumps its fluid contents in the reservoir. (vii)The mode of nutrition in euglenoids is holophytic or photoautotrophic. Some euglenoids show mixotrophic nutrition (both holophytic as well as saprobic mode). (viii)Cytoplasm is differentiated into ectoplasm and endoplasm. Nucleus is large and occurs roughly in middle. The envelope and nucleolus persist during cell division. (ix)Each chloroplast is composed of a granular matrix traversed by 10-45 dense bands and is covered by 3-membraned envelope. They contain the photo¬synthetic pigments-chlorophyll – n, b. They store carbohydrates as paramylon bodies, scattered throughout the cytoplasm. (x) Asexual reproduction occurs by longitudinal binary fission. The flagellum is duplicated before cell division. (xi)Under unfavourable condition the euglenoids form cysts to perennate the dry period. (xii)Sexual reproduction is not observed.
11.Give a brief account of viruses with respect to their structure and nature of genetic material. Also name four common viral diseases. Soln. Virus (L. poisonous fluid) is a group of ultramicroscopic, non-cellular, highly infectious agents that multiply only intracellularly- inside the living host cells without involving growth and division. Outside the host cells, they are inert particles. They are nucleoproteins having one or more nucleic acid molecule, either DNA or RNA, encased in a protective coat of protein or lipoprotein. A virus consist of two parts – nucleoid (genome) and capsid. An envelope and few enzymes are present in some cases, (i) Nucleoid : The nucleic acid present in the virus is called nucleoid and it represents viral chromosome. It is made up of a single molecule of nucleic acid. It may be linear or circular and nucleic acid can be DNA or RNA. It is the infective part of virus which utilizes the metabolic machinery of the host cell for synthesis and assembly of viral components. (ii)Capsid : It is a protein covering around genetic material. Capsid have protein subunits called capsomeres. Capsid protects nucleoid from damage from physical and chemical agents. , (iii)Envelope : It is the outer loose covering present in certain viruses like animal viruses (e.g., HIV) but rarely present in plant and bacterial viruses and made of protein of viral origin and, lipid and carbohydrate of host. Outgrowths called spikes may be present. Envelope proteins have subunits called peplomers. A virus without envelope is naked virus. (iv)Enzymes : Rarely, lysozymes are found in bacteriophages. Reverse transcriptase enzyme (catalyses RNA to DNA synthesis) is found in some RNA viruses like HIV. Some common viral diseases are – influenza, polio, measles, chickenpox, hepatitis, AIDS, bird flu, SARS (Severe Acute Respiratory Syndrome) etc.
15 questions mcq test - case based questions test: biological classification, linnaeus gave two kingdom classification, which consists of kingdom plantae and kingdom animalia. this classification was based on the mode of nutrition, reproduction, presence or absence of cell wall. however, this system had many drawbacks like there was no distinction between eukaryotes and prokaryotes. then, came the three kingdom classification in which single-celled bacteria and protozoans were kept in kingdom protista. this system also failed to classify all living organisms into appropriate categories. finally a five kingdom classification was proposed by dividing all the organisms into five kingdom and it will be accepted as modern system of classification. q. all eukaryotic unicellular organisms belong to :.
1 Crore+ students have signed up on EduRev. Have you? |
Linnaeus gave two kingdom classification, which consists of kingdom Plantae and kingdom Animalia. This classification was based on the mode of nutrition, reproduction, presence or absence of cell wall. However, this system had many drawbacks like there was no distinction between eukaryotes and prokaryotes. Then, came the three kingdom classification in which single-celled bacteria and protozoans were kept in kingdom Protista. This system also failed to classify all living organisms into appropriate categories. Finally a five Kingdom classification was proposed by dividing all the organisms into five kingdom and it will be accepted as modern system of classification.
Q. Organisms having characteristic of both plants and animals is :
Direction : In the following questions the Assertions (A) and Reasons (R) have been put forward. Read both the statements and choose the correct option from the following:
Assertion : The five kingdom classification is based on the mode of nutrition of organisms.
Reason : The organisms are placed in different group based on the cellular organization.
Sarcodines are unicellular, jelly-like protozoa found in fresh or sea water and in moist soil. Their body lacks a periplast. Therefore, they may be naked or covered by a calcareous shell. They usually lack flagella and have temporary protoplasmic outgrowths called pseudopodia. These pseudopodia or false feet help in movement and capturing prey. They include free living forms such as Amoeba or parasitic forms such as Entamoeba. Zoo flagellates ciliates and sporozoans are other groups of protozoan protists. They are all unicellular and heterotrophic. They may be holozoic, saprobic or parasitic.
Q. The basis of protozoan classification is:
Q. Protozoan group with two nuclei, macronucleus & micronucleus is :
Q. Which of the following is a flagellated protozoan.
Q. Which of the following is not the locomotory organ of protozoa.
Pseudopodia
Locomotory organs parapodia not found in protozoans.
Assertion : The heterotrophic protists are found as saprophytes, parasites and predators.
Reason : Heterotrophic protists are eukaryotic and mostly unicellular except few protists.
Lichens are the composite or dual organisms representing a symbiotic association between a fungus and alga. The fungal partner is called mycobiont whereas algal partner is called phycobiont. Algae prepares food for fungi and fungi provides shelter and absorbs mineral nutrient and water for its partner. Lichens grow on barren rocks, cooled volcanic lava and icy tundra soils. They can tolerate extreme dessication and are pioneers of rock vegetation. The are very sensitive to air pollution and do not grow in polluted area. They are very good pollution indicators Certain lichens or source of food for grazing animals.
Q. An association of roots of higher plants and fungi is called:
Q. Most of the lichens are formed by _____.
Lichens are the composite or dual organisms representing a symbiotic association between a fungus and alga. The fungal partner is called mycobiont whereas algal partner is called phycobiont. Algae prepares food for fungi and fungi provides shelter and absorbs mineral nutrient and water for its partner. Lichens grow on barren rocks, cooled volcanic lava and icy tundra soils. They can tolerate extreme desiccation and are pioneers of rock vegetation. The are very sensitive to air pollution and do not grow in polluted area. They are very good pollution indicators Certain lichens or source of food for grazing animals.
Q. Mycobiont and phycobiont are found in ________.
Q. Lichens are described as indicators of _____.
Assertion : Lichens are both algal and fungal cells that act as pollution indicator.
Reason : Lichens grow very fast at the rate of about 2 cm per year.
Case based questions test: biological classification mcqs with answers, online tests for case based questions test: biological classification.
cation olution |
Join the 10M+ students on EduRev |
Create your account for free.
Contact form.
If you're seeing this message, it means we're having trouble loading external resources on our website.
If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.
To log in and use all the features of Khan Academy, please enable JavaScript in your browser.
About this unit.
Learn about the Five Kingdoms of Monera, Protista, Fungi, Plantae and Animalia. Also take a sneak peek at viruses and sub viral particles. This unit is aligned to the Class 11 NCERT curriculum.
Biological Classification MCQ Questions /objective with answers Class 11 Biology Chapter 2
Table of Contents
12. which among these is/are useful fungi:.
22. “fungi imperpecti” is:, 23. we see “alternation in generation” in :, 24. we see nutrition by ingestion “holozoic” in:, 25. there is no place for virus, viroids, prions in five kingdom classification. because:.
1. c | 7. b | 13. b | 19. d |
2. c | 8. a | 14. b | 20. b |
3. e | 9. f | 15. c | 21. b |
4. a | 10. c | 16. d | 22. d |
5. a | 11. c | 17. b | 23. d |
6. c | 12. d | 18.c | 24. b |
25.b |
Ref: Chapter 2, NCERT.
Superb.. very helpful
It is really good question of biological classification
It was helpful at the very moment
It was very helpful .
it’s fantastic
{{#message}}{{{message}}}{{/message}}{{^message}}Your submission failed. The server responded with {{status_text}} (code {{status_code}}). Please contact the developer of this form processor to improve this message. Learn More {{/message}}
{{#message}}{{{message}}}{{/message}}{{^message}}It appears your submission was successful. Even though the server responded OK, it is possible the submission was not processed. Please contact the developer of this form processor to improve this message. Learn More {{/message}}
Submitting…
Feel the Biology
“ Biological Classification ” is the 2nd chapter of Biology NCERT text book for class 11. This chapter cover six topics including Kingdom Monera , Protista , Fungi , Plantae , Animalia and Viruses , Viroids & Lichens . Within Five kingdom Classification System , Kingdom Monera, Protista & Fungi are illustrated in detail in this chapter while kingdom Plantae & Animalia are briefly described here and given the detail in next two separate chapter.
It is a important chapter for NEET . Every year, three to four MCQs are asked in NEET from this chapter. So, let’s go for practice MCQ from this chapter…
Please leave your feedback in the “ Comment Section ” about your experience with the MCQ Practice Session .
f you have a confusion or query with any questions , please mention in the “ Comment Section ” or Submit a “ Contact form
The Living World | |
Biological Classification | Click here |
Plant Kingdom | |
Animal Kingdom | |
Plant Morphology | |
Plant Anatomy | |
Animal Tissue | |
Earthworm | |
Cockroach | |
Cell Biology | |
Biomolecules | |
Enzymes | |
Cell Division | |
Transport in Plants | |
Mineral Nutrition | |
Photosynthesis in Higher Plants | Click here |
Respiration in Plants | Click here |
Plant Growth and Development | Click here |
Digestion and Absorption | Click here |
Breathing and Exchange of Gases | Click here |
Body Fluied and Circulation | Click here |
Excretory Products and their Elimination | Click here |
Locomotion and Movement | Click here |
Neural Control and Coordination | Click here |
Chemical Coordination and Integration | Click here |
Reproduction in Organism | Click here |
Sexual Reproduction in Flowering Plants | Click here |
Human Reproduction | Click here |
Reproductive Health | Click here |
Principle of Inheritence & Variation | Click here |
Moleculer Basis of Inheritance | Click here |
Evolusion | Click here |
Human Health & Disease | Click here |
Strategies for Enhancement in Food Production | Click here |
Microbe in Human Welfare | Click here |
Biotechnology : Principles & Processes | Click here |
Biotechnology & its Application | Click here |
Organism & Population | Click here |
Ecosystem | Click here |
Biodiversity & Conservation | Click here |
Enviornmental Issues | Click here |
Thanks for visiting….
Save my name, email, and website in this browser for the next time I comment.
Notify me of follow-up comments by email.
Notify me of new posts by email.
Case study questions class 11 biology chapter 3 plant kingdom.
CBSE Class 11 Case Study Questions Biology Plant Kingdom. Important Case Study Questions for Class 11 Board Exam Students. Here we have arranged some Important Case Base Questions for students who are searching for Paragraph Based Questions Plant Kingdom.
The earliest systems of classification used only gross superficial morphological characters such as habit, colour, number and shape of leaves, etc. They were based mainly on vegetative characters or on the androecium structure (system given by Linnaeus). Such systems were artificial; they separated the closely related species since they were based on a few characteristics. Also, the artificial systems gave equal weightage to vegetative and sexual characteristics; this is not acceptable since we know that often the vegetative characters are more easily affected by environment. As against this, natural classification systems developed, which were based on natural affinities among the organisms and consider, not only the external features, but also internal features, like ultra-structure, anatomy, embryology and phytochemistry. Such a classification for flowering plants was given by George Bentham and Joseph Dalton Hooker.
1) In phylogenetic system of classification, it is believed that organisms belongs to the same taxa have ___________
d) All of the above
3) Why natural classification systems was developed, what was the need of it?
4) Natural classification systems were based on natural affinities among the organisms and consider, not only the external features, but also internal features, like ultra-structure, anatomy, embryology and phytochemistry. Such a classification for flowering plants was given by George Bentham and Joseph Dalton Hooker.
Numerical taxonomyis the branch of taxonomy in which mathematical methods are used to evaluate observable difference and similarities between taxonomic groups of plant.
The algae reproduce by vegetative, asexual and sexual methods. Vegetative reproduction is by fragmentation. Asexual reproduction is by the production of different types of spores, the most common being the zoospores. Sexual reproduction takes place through fusion of two gametes. The algae are divided into three main classes: Chlorophyceae, Phaeophyceae and Rhodophyceae.
1) ______________ is the colonial form of algae.
c) Carragen
d) Mannitol
The gymnosperms are heterosporous; they produce haploid microspores and megaspores. The two kinds of spores are produced within sporangia that are borne on sporophylls which are arranged spirally along an axis to form lax or compact strobili or cones. The strobili bearing microsporophylls and microsporangia are called microsporangiate or male strobili. The microspores develop into a male gametophytic generation which is highly reduced and is confined to only a limited number of cells. This reduced gametophyte is called a pollen grain. The development of pollen grains take place within the microsporangia. The cones bearing megasporophylls with ovules or megasporangia are called macrosporangiate or female strobili. The male or female cones or strobili may be borne on the same tree (Pinus). However, in cycas male cones and megasporophylls are borne on different trees. The megaspore mother cell is differentiated from one of the cells of the nucellus. The nucellus is protected by envelopes and the composite structure is called an ovule. The ovules are borne on megasporophylls which may be clustered to form the female cones. The megaspore mother cell divides meiotically to form four megaspores. One of the megaspores enclosed within the megasporangium develops into a multicellular female gametophyte that bears two or more archegonia or female sex organs. The multicellular female gametophyte is also retained within megasporangium.
c) Covered in ovary sheath
3) Name the special type of root found in cycus tree.
3) In cycus, small specialised roots i.e. coralloid roots are found. Coralloid roots shows symbiotic association with Nitrogen – fixing cyanobacteria.
They include approximately 960 genera and about 25,000 species. Life cycle of Bryophytes shows sporophytic and gametophytic stages. Vegetative plant body is thalloid or leafy which represents gametophytic generation. Spore producing capsule represents sporophytic generation. Bryophytes have root-like structures called rhizoids. Rhizoids are unicellular in liverworts while multicellular in mosses. Rhizoids absorb water and minerals and also help in fixation of thallus on the substratum. Bryophytes are divided into two groups : liverworts and mosses.
d) Both a and b
c) Sporophytic generation
In plants, both haploid and diploid cells can divide by mitosis. This ability leads to the formation of different plant bodies – haploid and diploid. The haploid plant body produces gametes by mitosis. This plant body represents a gametophyte. Following fertilisation the zygote also divides by mitosis to produce a diploid sporophytic plant body. Haploid spores are produced by this plant body by meiosis. These in turn, divide by mitosis to form a haploid plant body once again. Thus, during the life cycle of any sexually reproducing plant, there is an alternation of generations between gamete producing haploid gametophyte and spore producing diploid sporophyte.
1.) Identify the incorrect statement about haplontic life cycle pattern.
c) Haploid sporophyte
We have a strong team of experienced teachers who are here to solve all your exam preparation doubts, ncert solutions class 6 english poorvi chapter 2 the chair, manipur board class 4 english chapter 19 manitomba is no more idle, manipur board class 4 english chapter 17 three red-letter days, west bengal board class 4 maths chapter 31 solutions কত পড়ে থাকবে দেখি.
In Class 11 Final Exams there will be Case studies and Passage Based Questions will be asked, So practice these types of questions. Study Rate is always there to help you. Free PDF Downloads of CBSE Class 11 Biology Chapter 4 Case Study and Passage Based Questions with Answers were Prepared Based on Latest Exam Pattern. Students can solve Class 11 Biology Case Study Questions Animal Kingdom to know their preparation level.
Join our Telegram Channel, there you will get various e-books for CBSE 2024 Boards exams for Class 9th, 10th, 11th, and 12th.
In CBSE Class 11 Biology Paper, There will be a few questions based on case studies and passage-based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked.
Here, we have provided case-based/passage-based questions for Class 11 Biology Chapter 4 Animal Kingdom
Case Study/Passage-Based Questions
Case Study 1: Animals in which the cells are arranged in two embryonic layers, an external ectoderm, and an internal endoderm, are called diploblastic animals, e.g., coelenterates. An undifferentiated layer, mesoglea, is present in between the ectoderm and the endoderm.
Coelom – The presence or absence of a cavity between the body wall and the gut wall is very important in classification. The body cavity, which is lined by mesoderm is called coelom. Animals possessing coelom are called coelomates, e.g., annelids, mollusks, arthropods, echinoderms, hemichordates, and chordates. In some animals, the body cavity is not lined by mesoderm, instead, the mesoderm is present as scattered pouches in between the ectoderm and endoderm. Such a body cavity is called pseudo coelom and the animals possessing them are called pseudocoelomates, e.g., aschelminthes. The animals in which the body cavity is absent are called acoelomates, e.g., Platyhelminthes.
Segmentation – In some animals, the body is externally and internally divided into segments with a serial repetition of at least some organs. For example, in earthworms, the body shows a pattern called metameric segmentation, and the phenomenon is known as metamerism.
Notochord – It is a mesodermally derived rod-like structure formed on the dorsal side during embryonic development in some animals. Animals with notochord are called chordates and those animals which do not form this structure are called non-chordates, e.g., porifera to echinoderms.
1.) Diploblastic animals are characterized by _________________.
Ans: c) Both a and b
2.) In coelomates, the body cavity is surfaced by____________
Ans: b) Mesoderm
What distinguishes gymnosperms from other seed-producing plants? A) The ovules are enclosed by an ovary wall B) The ovules and seeds remain exposed C) The roots are always fibrous D) The leaves are never compound
What type of roots is associated with N2-fixing cyanobacteria in gymnosperms? A) Tap roots B) Fibrous roots C) Mycorrhizal roots D) Coralloid roots
In gymnosperms like conifers, what is the function of the needle-like leaves? A) Increase water absorption B) Enhance pollination C) Reduce surface area to minimize water loss D) Attract insects for pollination
Which gymnosperm is known for being one of the tallest tree species? A) Cycas B) Pinus C) Sequoia D) Mycorrhiza
What are the male cones or strobili in gymnosperms called? A) Macrosporangiate B) Megasporophylls C) Microsporangiate D) Megaspores
Which type of sporophylls bears the megasporangia in gymnosperms? A) Microsporophylls B) Macrosporophylls C) Strobili D) Male cones
How many megaspores are formed by the megaspore mother cell in gymnosperms? A) One B) Two C) Three D) Four
In which gymnosperm are male cones and megasporophylls borne on different trees? A) Sequoia B) Pinus C) Cycas D) Mycorrhiza
What kind of spores do gymnosperms produce? A) Heterosporous, producing both microspores and megaspores B) Homosporous, producing only one type of spore C) Only megaspores D) Only microspores
Which part of the gymnosperm is protected by envelopes and referred to as an ovule? A) Pollen grain B) Nucellus C) Microsporangia D) Archegonia
Hope the information shed above regarding Case Study and Passage Based Questions for Class 11 Biology Chapter 4 Animal Kingdom with Answers Pdf free download has been useful to an extent. If you have any other queries about CBSE Class 11 Biology Animal Kingdom Case Study and Passage Based Questions with Answers, feel free to comment below so that we can revert back to us at the earliest possible. By Team Study Rate
Class 11 biology: case study of chapter 8 cell: the unit of life pdf download, class 11 biology: case study of chapter 5 morphology of flowering plants pdf download, mcq questions class 11 english hornbill poem the laburnum top with answers, leave a reply cancel reply.
Save my name, email, and website in this browser for the next time I comment.
This site uses Akismet to reduce spam. Learn how your comment data is processed .
No thanks, I’m not interested!
IMAGES
VIDEO
COMMENTS
At Case Study Questions there will given a Paragraph. In where some Important Questions will made on that respective Case Based Study. There will various types of marks will given 1 marks, 2 marks, 3 marks, 4 marks. CBSE Case Study Questions Class 11 Biology Biological Classification. CASE 1 Bacteria are the sole members of the Kingdom Monera.
CBSE Class 11 Biology Case Study Question. Chapter 1 : The Living World. Chapter 2 : Biological Classification. Chapter 3 : Plant Kingdom. Chapter 4 : Animal Kingdom. Chapter 5 : Morphology of Flowering Plants. Chapter 6 : Anatomy of Flowering Plants. Chapter 7 : Structural Organisation in Animals. Chapter 8 : Cell : The Unit of Life.
Class 11th Biology - Biological Classification Case Study Questions and Answers 2022 - 2023 - Complete list of 11th Standard CBSE question papers, syllabus, exam tips, study material, previous year exam question papers, centum tips, formula, answer keys, solutions etc..
Case Study-Based Questions for Class 11 Biology. Chapter 1 : The Living World. Chapter 2 : Biological Classification. Chapter 3 : Plant Kingdom. Chapter 4 : Animal Kingdom. Chapter 5 : Morphology of Flowering Plants. Chapter 6 : Anatomy of Flowering Plants. Chapter 7 : Structural Organisation in Animals.
Here, we have provided case-based/passage-based questions for Class 11 Biology Chapter 2 Biological Classification. Case Study/Passage-Based Questions. Case Study 1: Phycomycetes - Members of Phycomycetes are found in aquatic habitats and on decaying wood in moist and damp places or as obligate parasites on plants.
Class 11 Biology case study questions 1. Read the following and answer any four questions: The detailed structure of the membrane was studied only after the advent of the electron microscope in the 1950s. Meanwhile, chemical studies on the cell membrane, especially in human red blood cells (RBCs), enabled the scientists to deduce the possible ...
834 Views. 16 Downloads. Case Study Questions Class 11 Biology Chapter 2 Biological Classifications Biology Class 11 Important Questions Chapter wise CBSE Class 11 Biology Extra Questions and Answers Assertion Reasoning Questions Class 11 Biology Free PDF Download Class 11 Biology CBSE 2022. Download Paper.
️📚👉 Watch Full Free Course Videos: https://www.magnetbrains.com ️📚👉 Grab Notes by Expert Teachers Here: https://www.pabbly.com/out/magnet-brains ️ ...
A.9. The algal component of the lichens is known as phycobiont, while the fungal component is known as mycobiont. Both the algae and the fungi live in symbiotic association with each other. The algae prepare food for the fungi and the fungi, in turn, provides shelter and absorbs nutrients from the soil. Q.10.
Case Study Questions for Class 11 Biology. Chapter 1: The Living World. Chapter 2: Biological Classification. Chapter 3: Plant Kingdom. Chapter 4: Animal Kingdom. Chapter 5: Morphology of Flowering Plants. Chapter 6: Anatomy of Flowering Plants. Chapter 7: Structural Organisation in Animals. Chapter 8: The Unit of Life.
3. Readily available in chapterwise and exercise-wise format. 4. PDF format solutions are free for download. 5. Stepwise answers are created based on the CBSE exam marks weightage. Get access to free NCERT Solutions for Class 11 Chapter 2 Biological Classification. Find solutions solved along with steps explained in detail.
Chapter-wise Solved Case Study Questions for Class 11 Biology. Chapter 1 : The Living World. Chapter 2 : Biological Classification. Chapter 3 : Plant Kingdom. Chapter 4 : Animal Kingdom. Chapter 5 : Morphology of Flowering Plants. Chapter 6 : Anatomy of Flowering Plants. Chapter 7 : Structural Organisation in Animals.
At Case Study Questions there will given a Paragraph. In where some Important Questions will made on that respective Case Based Study. There will various types of marks will given 1 marks, 2 marks, 3 marks, 4 marks. CBSE Case Study Questions Class 11 Biology The Living World. CASE 1. Life is a unique process that is made from the aggregation of ...
NCERT Solutions Class 11 Biology Biology Sample Papers. NCRT TEXT BOOK QUESTIONS SOLVED. 1.Discuss how classification systems have undergone several changes over a period of time? Soln. Biological classification is the scientific procedure of arranging organisms in a hierarchical series of groups and sub-groups on the basis of their similarities and dissimilarities.
The Case Based Questions Test: Biological Classification questions and answers have been prepared according to the Grade 11 exam syllabus.The Case Based Questions Test: Biological Classification MCQs are made for Grade 11 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Case Based ...
Answer. The four major groups of Protozoa are: • Amoeboid protozoans: These organisms live in fresh water, sea water or moist soil. They move and capture their prey by putting out pseudopodia (false feet) as in Amoeba. Marine forms have silica shells on their surface. Some of them such as Entamoeba are parasites.
Viruses and subviral particles. Viruses. Intro to viruses. Subviral particles: viroids and prions. Learn about the Five Kingdoms of Monera, Protista, Fungi, Plantae and Animalia. Also take a sneak peek at viruses and sub viral particles. This unit is aligned to the Class 11 NCERT curriculum.
Biological Classification MCQ Questions with answers. July 1, 2020 by Amit. Biological Classification MCQ Questions /objective with answers Class 11 Biology Chapter 2. 1. Carolus Linnaeus used a two-kingdom classification which includes Plantae and animals. Currently, we use: a.
"Biological Classification" is the 2nd chapter of Biology NCERT text book for class 11. This chapter cover six topics including Kingdom Monera, Protista, Fungi, Plantae, Animalia and Viruses, Viroids & Lichens.Within Five kingdom Classification System, Kingdom Monera, Protista & Fungi are illustrated in detail in this chapter while kingdom Plantae & Animalia are briefly described here and ...
Get Sample Paper with solutions for CBSE Class 11-science Biology Case Study Questions for CBSE Class 11 Biology at TopperLearning. Sign up today & prepare for your exam with TopperLearning study materials.
Here, we have provided case-based/passage-based questions for Class 11 Biology Chapter 3 Plant Kingdom. Case Study/Passage-Based Questions. Case Study 1: Gymnosperms are plants in which the ovules are not enclosed by any ovary wall and remain exposed, both before and after fertilization. The seeds that develop post-fertilisation, are not ...
CBSE Case Study Questions Class 11 Biology Plant Kingdom. CASE 1. The earliest systems of classification used only gross superficial morphological characters such as habit, colour, number and shape of leaves, etc. They were based mainly on vegetative characters or on the androecium structure (system given by Linnaeus).
Here, we have provided case-based/passage-based questions for Class 11 Biology Chapter 4 Animal Kingdom. Case Study/Passage-Based Questions. Case Study 1: Animals in which the cells are arranged in two embryonic layers, an external ectoderm, and an internal endoderm, are called diploblastic animals, e.g., coelenterates. An undifferentiated ...