Questions: The carbohydrate that is found in plant cell walls is Multiple Choice chitin. sucrose. cellulose. fructose. starch.

The answer is the third one (C): cellulose.

Explanation for each option:

• Chitin: This is incorrect. Chitin is a carbohydrate found in the exoskeletons of arthropods and the cell walls of fungi, not in plant cell walls.

• Sucrose: This is incorrect. Sucrose is a disaccharide sugar found in many plants, but it is not a structural component of plant cell walls.

• Cellulose: This is correct. Cellulose is a polysaccharide that is a major component of plant cell walls, providing structural support.

• Fructose: This is incorrect. Fructose is a simple sugar (monosaccharide) found in many plants, but it is not a component of plant cell walls.

• Starch: This is incorrect. Starch is a storage polysaccharide found in plants, but it is not a structural component of plant cell walls.

In summary, cellulose is the carbohydrate found in plant cell walls.