Cellulose Is Not Digested by Humans Because It

question 16

Multiple Choice

Cellulose is not digested by humans because it

• A) is a relatively insoluble protein-carbohydrate complex inaccessible to digestive enzymes.
• B) is a mucopolysaccharide, which is not a substrate for digestive enzymes.
• C) is highly sulfated, making it inaccessible to the action of most glycosidases.
• D) is a polymer of glucose molecules in beta 1-4 linkage for which we have no digestive enzymes.
• E) resists enzyme action due to its highly branched structure.

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