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2. A cell in the leaf of a green plant performs both photosynthesis and cellular respiration, often at the same time. Which statement best describes how these processes are related to each other?

A. Both processes require energy directly from the Sun.
B. Both processes produce carbon dioxide.
C. Thermal energy from one process is used as the energy source for the other process.
D. Products of one process are used as some of the reactants for the other processes.

2 Answers

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I am thinking D because respiration produces co2 which plants use with h2o to produce Carbon in photosynthesis. They release oxygen in the process too.

User Brett H
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The correct answer would be D. Products of one process are used as some of the reactants for the other processes.

As you may know, the formula for photosynthesis is:

carbon dioxide + water ==> oxygen + glucose

And the formula for respiration is:

oxygen + glucose ==> carbon dioxide + water

The reactants for one are the products for the other and vice versa. This is why it would be the correct option.

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User NorRen
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