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Question 55

Which statements correctly compare when photosynthesis and when respiration take place in a plant? Select all that apply.

  1. Photosynthesis takes place only while the plant is in the lightCorrect answer
  2. The two processes take turns, one by day and one by night
  3. Respiration takes place only when photosynthesis has stopped
  4. Respiration takes place in the light and in the darkCorrect answer

Explanation

One of the two processes depends on an energy supply that only daylight provides, while the other runs on the plant's own store and therefore never pauses. Treating them as a pair that swaps over at sunset is the misconception at work, since only one of them is switched off by darkness and neither waits for the other to finish.

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Question 55: Which statements correctly compare when photosynthesis and… · Plants and Photosynthesis · Questena