AP Environmental Science : Cellular Respiration

Study concepts, example questions & explanations for AP Environmental Science

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Example Questions

Example Question #1 : Cellular Respiration

In cellular respiration,

Possible Answers:

none of these

carbon dioxide is synthesized from water and carbon dioxide

oxygen is produced as a waste

glucose is oxidized to produce energy and carbon dioxide

organisms breathe oxygen in and carbon dioxide out

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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