Question

cellulose is found throughout the cell walls of plant cells. cellulose makes cell walls rigid, which indicates that cellulose is a carbohydrate. lipid. nucleic acid. protein.

Explanation:

Cellulose is a polysaccharide, which is a type of carbohydrate. It is a major component of plant cell - walls providing rigidity. Lipids are mainly for energy - storage and membrane - formation, nucleic acids carry genetic information, and proteins have various functions like catalysis and structure but cellulose is not one of them.

Answer:

A. carbohydrate