Questions: The plant-derived polysaccharide that humans can readily digest is called .

The answer is: starch.

Explanation:

• Starch is a plant-derived polysaccharide that humans can readily digest. It is composed of glucose units and is a major source of energy in the human diet. Enzymes like amylase in saliva and the small intestine break down starch into simpler sugars that the body can absorb.
• Other plant-derived polysaccharides, such as cellulose, cannot be readily digested by humans because we lack the necessary enzymes to break down the beta-glycosidic bonds in cellulose.