Photosynthesis vs Respiration · NCERT Biology

Why is respiration essential even in photosynthetic tissues?

  1. To synthesize chlorophyll molecules properly
  2. To release excess oxygen
  3. To provide ATP for cellular activities
  4. To absorb light energy
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Correct answer: To provide ATP for cellular activities

Respiration provides ATP required for growth, repair, and maintenance of cells. Photosynthesis alone cannot meet immediate energy needs.

Difficulty: Medium Question 17 of 20

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