Cellulose is found throughout the cell walls of plant cells. cellulose makes cell walls rigid, which indicates that cellulose is a

Cellulose is a complex carbohydrate that is a structural component of the plant cell.

Explanation:

Carbohydrate is a carbohydrate or polysaccharide which is the main component found in plant cell walls. Cellulose helps the plant to remain rigid and strong.

Cellulose is a linear or straight chain of a few hundred to many thousands of β linked D-glucose units. Cellulose makes up about 33% of all vegetable matter and is the most available of all naturally occurring organic compounds.

Thus, the correct answer is cellulose is a complex carbohydrate.