Biology

The correct answer is: C.It gives rigidity and structure to the plant cell wall.

Explanation:

Cellulose is a complex carbohydrate (polysaccharide) and is the primary component of the plant cell wall. Its long, fibrous molecules provide rigidity, strength, and structure to the cell wall, helping plant cells maintain their shape and resist external pressure. The strong, rigid nature of cellulose contributes to the overall structural integrity of the plant.

Why the other options are incorrect:

A.It provides energy for the plant: While cellulose is made of glucose units, it is ...