Biology PYQ 48 of 227 · Plant Physiology: Photosynthesis, Respiration & Nutrition

Water reaches great heights in trees because of suction pull caused by

  1. Aevaporation
  2. Babsorption
  3. Ctranspiration
  4. DMore than one of the above
  5. ENone of the above

68th BPSC

Show answer and explanation

Correct answer: (c) transpiration

Explanation

Transpiration is the loss of water vapour through the stomata of leaves, creating a suction pull that draws water upward.

This pull moves water through the xylem to great heights; evaporation and absorption do not generate this transport tension.

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