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The plasma membrane is a semipermeable membrane. This means that it is:

A) Permeable to small molecules except water.

B) Permeable to small and uncharged molecules but not to larger or charged substances.

C) Only permeable to cholesterol.

D) Permeable to large charged molecules but not to small uncharged molecules.

Answer :

Final answer:

The plasma membrane is semipermeable, allowing small and uncharged molecules while blocking larger or charged substances.


Explanation:

The plasma membrane is a semipermeable membrane which means that it is permeable to small and uncharged molecules but not to larger or charged substances. It allows for the movement of certain molecules while restricting others based on their size and charge. For example, oxygen and carbon dioxide can freely pass through the plasma membrane, while ions and macromolecules like proteins require specific transport mechanisms to cross the membrane.


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