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Example Questions
Example Question #3 : Energy And Biochemical Cycles
In cellular respiration,
Possible Answers:
organisms breathe oxygen in and carbon dioxide out
carbon dioxide is synthesized from water and carbon dioxide
glucose is oxidized to produce energy and carbon dioxide
oxygen is produced as a waste
none of these
Correct answer:
glucose is oxidized to produce energy and carbon dioxide
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.
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