Question

the plasma membrane (cell membrane)
why is the plasma membrane critical to the survival of a cell?
a. the cell membrane contains the genetic material.
b. the cell membrane produces cellular energy.
c. the cell membrane regulates what enters and leaves the cell.
d. the cell membrane controls other organelles in the cell.

Explanation:

• Option A: Genetic material is in the nucleus, not the cell membrane. Eliminate A.
• Option B: Cellular energy (ATP) is produced by mitochondria, not the cell membrane. Eliminate B.
• Option C: The plasma membrane is selectively permeable, regulating the movement of substances (like nutrients in, waste out) into and out of the cell. This is vital for cell survival.
• Option D: The nucleus or cytoskeleton - related structures, not the cell membrane, control organelles. Eliminate D.

Answer:

C. The cell membrane regulates what enters and leaves the cell.