Question

why is the plasma membrane called a selectively permeable membrane? mention any two functions of plasma membrane​

Answer 1

Answer:

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Explanation:

The plasma membrane is called a selectively permeable membrane as it permits the movement of only certain molecules in and out of the cells. ... It allows hydrophobic molecules and small polar molecules diffuse through the lipid layer, but does not allow ions and large polar molecules cannot diffuse through the membrane.

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Answer 2

The plasma membrane is called a selectively permeable membrane as it permits the movement of only certain molecules in and out of the cells.

Functions of plasma membrane :

• It protects the cell from its surroundings.
• It acts as is selectively permeable to ions and organic molecules.
• It keeps toxic substances out of the cell.
• It receives chemical messengers from other cell.