Which of the following statements correctly describes the processes of photosynthesis and cellular respiration?

photosynthesis occurs only in autotrophs; cellular respiration occurs only in heterotrophs

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photosynthesis uses solar energy to convert inorganics to energy-rich organics; respiration breaks down energy-rich organics to synthesize ATP

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photosynthesis involves the oxidation of glucose; respiration involves the reduction of CO2

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the primary function of photosynthesis is to use solar energy to synthesize ATP; the primary function of cellular respiration is to break down ATP and release energy

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Solution

The correct option is D

photosynthesis uses solar energy to convert inorganics to energy-rich organics; respiration breaks down energy-rich organics to synthesize ATP

Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.

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