Question

In a plant cell, which structure provides rigidity and protection?

• A. Cell membrane
• B. Cell wall
• C. Vacuole
• D. Nucleus

Hint:

{Plant cells have a cell wall made of cellulose} which provides rigidity, support, and protection.

Answer 1

The Correct Option is B

Concept: Plant cells contain a rigid outer layer called the cell wall. It surrounds the cell membrane and provides structural support, protection, and shape to the cell. The cell wall is primarily composed of cellulose, a complex carbohydrate that gives the cell strength and rigidity.
Step 1: Understanding the function of the cell wall.
The cell wall helps the plant cell maintain its shape and protects it from mechanical damage and excessive water intake.
Step 2: Eliminating other options.

• Cell membrane controls the movement of substances in and out of the cell.
• Vacuole stores water and nutrients.
• Nucleus controls genetic activities of the cell.

Thus, the structure responsible for rigidity and protection in plant cells is the cell wall.