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Q.

Which of the following controls permeability?

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a

Cell membrane

b

Cell wall

c

Protoplasm

d

Cytoplasm

answer is A.

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Detailed Solution

The plasma membrane (cell membrane) is both selective & semipermeable in nature. 

The cell membrane regulates or controls the permeability of the cell.

Every living cell has a cell membrane, nucleus & cytoplasm.

The cell membrane acts as a barrier for the cell with its environment. It also helps in ion exchange.

The plasma membrane helps in osmoregulation (osmotic balance in the cell).

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