Multiple choice

Assertion: Plasmolysis is the physical phenomenon that can be employed to visualise cell wall and cell membrane distinctively. Reason: When placed in a hypertonic solution, the cell membrane is constricted due to heavy loss of water owing to the physical phenomenon of osmosis.

  1. Assertion and Reason both are correct and Reason is the correct explanation of Assertion.

  2. Assertion and Reason both are correct and Reason is NOT the correct explanation of Assertion.

  3. Assertion is correct but Reason is wrong.

  4. Assertion and Reason both are incorrect.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Plasmolysis leads to contraction of cytoplasm away from the plasma membrane, which further induces membrane to contract and thus, increasing the gap between cell membrane and cell wall of a plant cell. This makes both the structures distinctively visible. Plasmolysis is a result of osmosis as it occurs when a plant cell is placed in hypertonic solution.  

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