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Transport in Plants — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYTransport in Plants1 Mark
MCQ
Which of the following is not a controlled process:
  • A
    Transpiration
  • ✓
    Guttation
  • C
    Both $A$ and $B$
  • D
    None of the above
✓

Answer

Correct option: B.
Guttation
Transpiration is the loss of water through stomata in vapour form.
Transpiration is regulated through guard cells.
Guttation is the loss of water in liquid form through hydathodes.
Hydathodes are free ends of vascular supply of leaves.
Hydathodes are always open and not regulated by any cells.

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