Cellular Respiration
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AP Environmental Science › Cellular Respiration
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In cellular respiration,
glucose is oxidized to produce energy and carbon dioxide
CORRECT
carbon dioxide is synthesized from water and carbon dioxide
oxygen is produced as a waste
organisms breathe oxygen in and carbon dioxide out
none of these
Explanation
In cellular respiration, glucose and oxygen are used to produce energy, as well as carbon dioxide and water as wastes. Cellular respiration is essentially the opposite of photosynthesis. Do not confuse cellular respiration with respiration (breathing), which is the physiological process of taking air in to receive oxygen, and breathing air out to expel excess carbon dioxide produced during cellular respiration.