Multiple choice

Plasma membrane

  1. helps in protein synthesis

  2. regulates the passage of water only into and out of the cell

  3. regulates the passage of water and dissolved substances into and out of cell

  4. protects the organelles of the plant cell

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The plasma membrane controls the movement of water, ions, nutrients, and waste products into and out of the cell through selective permeability. It does not synthesize proteins (that's ribosomes) or specifically protect plant cell organelles (that's the cell wall's job).

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