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Absorption by roots - The Processes Involved — Biology STD 10 — Question

ICSE BoardEnglish MediumSTD 10BiologyAbsorption by roots - The Processes Involved1 Mark
MCQ
Assertion: In hypertonic solution, a plant cell shrinks.
Reason: Due to plasmolysis in hypertonic solution, water moves out of the cells.
  • ✓
    Both A and R are True.
  • B
    Both A and R are False.
  • C
    A is True and R is False.
  • D
    A is False and R is True.
✓

Answer

Correct option: A.
Both A and R are True.
(a) Both A and R are True.
Explanation:
In hypertonic solutions, water moves out of the plant cell, first from the cytoplasm and then from the vacuole. This outflow causes the protoplast (the living part of the cell) to shrink away from the cell wall. This process is known as plasmolysis.

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