Question

Which of the following are functions of plasma membrane?

• A. Acts as mechanical barrier
• B. Performs selective permeability
• C. Provides shape
• D. Helps in energy production

Answer 1

Answer: (A), (B), (C)

Provides shape

Plasma membrane provides a mechanical barrier between the inner components of the cell and external environment. It performs selective permeability, i.e, allows movement of selective substances in and out of the cell. It provides a definite shape to the cell.