Photosynthesis

Photosynthesis - transferred to ATP. In respiration,...

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Photosynthesis Photosynthesis is a process in which the energy in sunlight is stored in the chemical bonds of glucose (C 6 H 12 O 6 ) for later use. Carbon dioxide is reduced to glucose and water is oxidized . Oxidation is the loss of an electron or hydrogen atom. Reduction is the gain of an electron or hydrogen atom. Oxidation reactions release energy and reduction reactions store energy in chemical bonds. What is Cellular Respiration? Cellular respiration allows organisms to use (release) the energy stored in glucose. The energy in glucose is first used to produce ATP. Cells use ATP to supply their energy needs. Cellular respiration is therefore a process in which the energy in glucose is
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Unformatted text preview: transferred to ATP. In respiration, glucose is oxidized (releasing energy) and oxygen is reduced to form water. The carbon atoms of the sugar molecule are released as carbon dioxide (CO 2 ). The complete breakdown of glucose to carbon dioxide and water requires two major steps: 1) glycolysis and 2) aerobic respiration. Glycolysis produces two ATP. Thirty-four more ATP are produced by aerobic pathways if oxygen is present. In the absence of oxygen, fermentation reactions produce alcohol or lactic acid but no additional ATP....
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This note was uploaded on 05/01/2008 for the course BIOL 100 taught by Professor Staff during the Spring '07 term at UMBC.

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Photosynthesis - transferred to ATP. In respiration,...

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