Question

What are the advantages of flexibility of cell membrane?

• A. It enables the cell to undergo exocytosis and endocytosis.
• B. It makes the cell impermeable.
• C. It makes the cell dead.
• D. It has no role.

Answer 1

The correct option is A It enables the cell to undergo exocytosis and endocytosis.

The cell membrane is flexible enough to form invagination around a particle and to take it inside the cell. This process is termed as endocytosis or sometimes phagocytosis. Cell membrane can also fuse to the vesicular membrane and can release vesicular contents to the external medium. This process is called as exocytosis. Both processes are important for a living organism. Plant cells cannot carry out endocytosis and exocytosis as they possess cell wall around their cell membrane.
So, the correct option is A.