Question

Write the chemical composition of plasma membrane.Why is it referred to as a
selectively permeable structure?

Answer 1

Answer:

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.

Answer 2

Answer:

The membrane that surrounds the organelles of the cell, by creating a barrier between cell organelles and the external environment is called the plasma membrane. It is also called a boundary of the cell.

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