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Photosynthesis — Biology STD 10 — Question

ICSE BoardEnglish MediumSTD 10BiologyPhotosynthesis1 Mark
MCQ
Compensation point means the condition:
  • A
    When the entire food manufactured in photosynthesis remains unutilised
  • B
    When the pot is watered just to meet the full requirement of the plant
  • ✓
    When rate of photosynthesis is equal to rate of respiration
  • D
    Where there is neither photosynthesis nor respiration.
✓

Answer

Correct option: C.
When rate of photosynthesis is equal to rate of respiration
(c) When rate of photosynthesis is equal to rate of respiration.
Explanation:
The compensation point is the light intensity at which the amount of oxygen consumed in respiration is equal to the amount of oxygen produced in photosynthesis, making the net gas exchange of oxygen and carbon dioxide zero.

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