| Life is powered by sunlight. The energy used by most living cells comes ultimately from the sun. Plants, algae, and some bacteria use energy from sunlight, particularly blue and red wavelengths, to build molecules which later can be split through cellular respiration to retrieve some of that energy. Storing energy in molecules and then oxidizing those molecules to retrieve the stored energy maintains all life on Earth. Plants are often called ‘producers’ because they produce energy-storing molecules used by almost all other organisms on Earth. By eating plants, herbivores ‘steal’ these energy-storing molecules to maintain their own life processes. By eating animals, carnivores ‘plunder’ the molecules that store the energy oringinally captured by plants. By feeding on dead tissue, decomposers exploit whatever molecules remain in the dead the plants, herbivores, and carnivores. Ultimately, the process of photosynthesis is the most important chemical reaction on Earth. As biologists are well aware, “Roses are red, violets are blue. If the green plants go, then so do you!” |
Pardon Our InterruptionAs you were browsing something about your browser made us think you were a bot. There are a few reasons this might happen: - You've disabled JavaScript in your web browser.
- You're a power user moving through this website with super-human speed.
- You've disabled cookies in your web browser.
- A third-party browser plugin, such as Ghostery or NoScript, is preventing JavaScript from running. Additional information is available in this support article .
To regain access, please make sure that cookies and JavaScript are enabled before reloading the page. |
IMAGES
VIDEO
COMMENTS
The Editors of Encyclopaedia Britannica. Photosynthesis is critical for the existence of the vast majority of life on Earth. It is the way in which virtually all energy in the biosphere becomes available to living things. As primary producers, photosynthetic organisms form the base of Earth's food webs and are consumed directly or indirectly ...
photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy.During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.. It would be impossible to overestimate the importance of photosynthesis in the maintenance of life on Earth.
By Laurie Brenner. Photosynthesis is important to living organisms because it is the number one source of oxygen in the atmosphere. Without photosynthesis, the carbon cycle could not occur, oxygen-requiring life would not survive and plants would die. Green plants and trees use photosynthesis to make food from sunlight, carbon dioxide and water ...
The process. During photosynthesis, plants take in carbon dioxide (CO 2) and water (H 2 O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.
Why It's Important. Photosynthesis is vital for life on Earth. It gives us food and oxygen. Without it, there would be no plants, and without plants, animals and people would not survive. It also helps take in carbon dioxide, which is good for the Earth. 250 Words Essay on Photosynthesis
Photosynthesis sustains virtually all life on planet Earth providing the oxygen we breathe and the food we eat; it forms the basis of global food chains and meets the majority of humankind's current energy needs through fossilized photosynthetic fuels. The process of photosynthesis in plants is based on two reactions that are carried out by separate parts of the chloroplast. The light ...
Photosynthesis is one of the most important processes on Earth because it provides the energy that supports almost all life on the planet. The oxygen produced during photosynthesis is also essential for breathing, and the glucose produced is a source of food for plants and the animals that eat them. →What are the Reactants and Products of ...
Photosynthesis is a multi-step process that requires sunlight, carbon dioxide (which is low in energy), and water as substrates (Figure 3). After the process is complete, it releases oxygen and produces glyceraldehyde-3-phosphate (GA3P), simple carbohydrate molecules (which are high in energy) that can subsequently be converted into glucose, sucrose, or any of dozens of other sugar molecules.
Photosynthesis. Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel. These primary producers form the base of an ecosystem and fuel the next trophic levels.
It is the main event in light reactions of photosynthesis. The function of light reactions is two fold —. (1) The photochemical splitting of water provides hydrogen atoms for the reduction of CO 2, and. (2) Producing of ATP which provides energy for the subsequent synthesis of carbohydrates.
Listen. "Photosynthesis is an important process which allows organisms to produce food without the intervention of any other organisms. This specialized reaction, occurring only in autotrophs, has several key features that are fundamental for understanding the process as a whole. Factors of where the process takes place, the reactants and ...
Photosynthesis. Photosynthesis is the processes of using sunlight to convert chemical compounds (specifically carbon dioxide and water) into food. Photosynthesizing organisms (plants, algae, and bacteria) provide most of the chemical energy that flows through the biosphere. They also produced most of the biomass that led to the fossil fuels ...
Devens Gust, Regents' Professor Emeritus. Photosynthesis is arguably the most important biological process on earth. By liberating oxygen and consuming carbon dioxide, it has transformed the world into the hospitable environment we know today. Directly or indirectly, photosynthesis fills all of our food requirements and many of our needs for ...
INTRODUCTION. With limited agricultural land and increasing human population, it is essential to enhance photosynthetic activities. Oxygenic photosynthesis is a very important process, not only because it is the source of our food, fibre and many useful substances, but also because almost all life on the Earth depends on it, either directly or indirectly.
Introduction. Photosynthesis is the chemical reaction that sustains most life on Earth. Since the description of the Hill reaction and the Calvin-Benson cycle 1-3, knowledge about their components, regulation, and limitations experienced a vertiginous increase.It is widely known that plants have important handicaps related to photosynthesis.
Unlike photosynthesis, aerobic respiration is an exergonic process (negative ΔG°) with the energy released being used by the organism to power biosynthetic processes that allow growth and renewal, mechanical work (such as muscle contraction or flagella rotation) and facilitating changes in chemical concentrations within the cell (e.g. accumulation of nutrients and expulsion of waste).
Photosynthesis is a highly regulated, multistep process. It encompasses the harvest of solar energy, transfer of excitation energy, energy conversion, electron transfer from water to NADP +, ATP generation and a series of enzymatic reactions that assimilate carbon dioxide and synthesize carbohydrate. Photosynthesis has a unique place in the ...
Photosynthesis takes place in specialized structures called chloroplasts, which are small organelles within plant cells. These chloroplasts contain a number of important chemicals and structures ...
The primary function of photosynthesis is to convert solar energy into chemical energy and then store that chemical energy for future use. For the most part, the planet's living systems are powered by this process. It's not particularly efficient by human engineering standards, but it does the job.
The plants requires glucose for their growth and energy. All the living people and animals on the earth depend on fats, proteins, and carbohydrates to obtain their energy, that is what makes this is one of the reasons photosynthesis is essential to life on earth. Another product of photosynthesis is oxygen which we need to breathe.
By feeding on dead tissue, decomposers exploit whatever molecules remain in the dead the plants, herbivores, and carnivores. Ultimately, the process of photosynthesis is the most important chemical reaction on Earth. As biologists are well aware, "Roses are red, violets are blue. If the green plants go, then so do you!".
Photosynthesis is a chemical process whereby plants and algae that contain chlorophyll capture radiant energy from the sun, and use carbon dioxide and water from the environment to then convert the sunlight to food (glucose), while at the same time creating oxygen and water as byproducts. Of course, we humans get the benefit of all that food ...