Question

_______ make(s) the walls of plant cells strong and rigid.
a. Pectins
b. Gums
c. Oligosaccharides
d. Cellulose

Answer 1

The correct answer is D. Cellulose is what makes the walls of plant cells strong and rigid. Cellulose is a polysaccharide that is very important for their structural role in animals and plants. It gives rigidity to the cells of a plant.

Answer 2

Answer:

D. Cellulose

Explanation: