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2. Photosynthesis - Wikipedia

   en.wikipedia.org/wiki/Photosynthesis

   In general outline, photosynthesis is the opposite of cellular respiration: while photosynthesis is a process of reduction of carbon dioxide to carbohydrates, cellular respiration is the oxidation of carbohydrates or other nutrients to carbon dioxide. Nutrients used in cellular respiration include carbohydrates, amino acids and fatty acids.

3. Ecosystem respiration - Wikipedia

   en.wikipedia.org/wiki/Ecosystem_respiration

   Ecosystem respiration is the sum of all respiration occurring by the living organisms in a specific ecosystem. [1] The two main processes that contribute to ecosystem respiration are photosynthesis and cellular respiration .

4. Cellular respiration - Wikipedia

   en.wikipedia.org/wiki/Cellular_respiration

   Cellular respiration may be described as a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from nutrients into ATP, and then release waste products. [1] Cellular respiration is a vital process that occurs in the cells of all [[plants and some bacteria ]].

5. Energy flow (ecology) - Wikipedia

   en.wikipedia.org/wiki/Energy_flow_(ecology)

   A producer is any organism that performs photosynthesis. [9] Producers are important because they convert energy from the sun into a storable and usable chemical form of energy, glucose, [1] as well as oxygen. The producers themselves can use the energy stored in glucose to perform cellular respiration.

6. Oxygen cycle - Wikipedia

   en.wikipedia.org/wiki/Oxygen_cycle

   Photosynthesis (land) 16,500 Photosynthesis (ocean) 13,500 Photolysis of N 2 O: 1.3 Photolysis of H 2 O: 0.03 Total gains ~30,000 Losses - respiration and decay: Aerobic respiration: 23,000 Microbial oxidation: 5,100 Combustion of fossil fuel (anthropogenic) 1,200 Photochemical oxidation: 600 Fixation of N 2 by lightning: 12 Fixation of N 2 by ...

7. File:Simple photosynthesis overview.svg - Wikipedia

   en.wikipedia.org/wiki/File:Simple_photosynthesis...

   A simplified diagram of photosynthesis. Redrawn in vector format from Image:Simple_photosynthesis_overview.PNG: Date: 18 April 2008: Source: Own work: Author: Daniel Mayer (mav) - original image Vector version by Yerpo: Other versions

8. Autotroph - Wikipedia

   en.wikipedia.org/wiki/Autotroph

   Photosynthesis is the main means by which plants, algae and many bacteria produce organic compounds and oxygen from carbon dioxide and water (green arrow). An autotroph is an organism that can convert abiotic sources of energy into energy stored in organic compounds , which can be used by other organisms .

9. Oxygen evolution - Wikipedia

   en.wikipedia.org/wiki/Oxygen_evolution

   The reaction is part of the light-dependent reactions of photosynthesis in cyanobacteria and the chloroplasts of green algae and plants. It utilizes the energy of light to split a water molecule into its protons and electrons for photosynthesis. Free oxygen, generated as a by-product of this reaction, is released into the atmosphere.