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Question 57

During a bright afternoon, what is happening inside the cells of a leaf?

  1. Photosynthesis is running while respiration waits for the dark
  2. Respiration is running while photosynthesis waits for a cooler hour
  3. Photosynthesis has replaced respiration until the sun sets
  4. Photosynthesis and respiration are running at the same timeCorrect answer

Explanation

A leaf builds sugar and breaks sugar down in the same cells at the same moment, because the two processes are independent and neither has to wait for the other to stop. Believing that they alternate leaves no way to explain how a leaf can be releasing and consuming the same gases at once, which is exactly what a lit leaf does.

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Question 57: During a bright afternoon, what is happening inside the… · Plants and Photosynthesis · Questena