Multiple choice

Plasma membrane controls

  1. passage of water only

  2. passage of water and solutes in and out of the cell

  3. passage of water and solutes into the cell

  4. movement of cell contents out of the cell

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

The plasma membrane is selectively permeable, regulating the passage of water, ions, and organic molecules into and out of the cell to maintain homeostasis.