What is the main function of the plasma membrane in cells?
A) Regulating exchanges between the inside and outside of the cell
B) Containing the cell's genetic material
C) Synthesizing proteins
D) Facilitating cell movement
E) Providing energy to the cell
IMAT 2025 · Question 29
Q29 - Structure and function of the cell membrane
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The correct answer is A) Regulating exchanges between the inside and outside of the cell.
The plasma membrane's main job is to control what goes in and out of the cell. It's a selectively permeable barrier.
Genetic material is in the nucleus, proteins are made on ribosomes, movement depends on the cytoskeleton and energy mostly comes from mitochondria.
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