Question

Look at the given cell carefully. Identify the function of the part labelled Y.

• A. It controls the movement of materials in and out of the cell.
• B. It controls all the activities of the cell.
• C. It contains many cell parts.
• D. It provides protection to the cell.

Answer 1

Answer: (D)

It provides protection to the cell.

The cell wall is a tough, rigid layer that surrounds the cells except for animal cells. It is located outside the cell membrane. The composition of cell wall varies from organism to organism e.g., plant cell wall is made up of cellulose, the fungal cell wall is made up chitin and bacterial cell wall is made up of peptidoglycan. The major function of the cell wall is to provide rigidity, tensile strength, structural support, protection against mechanical stress and infection. It also aids in diffusion of gasses in and out of the cell. Thus, the correct answer is option D.