Cellulose Lacks Nutritive Value for Humans Because

question 67

Multiple Choice

Cellulose lacks nutritive value for humans because:

• A) the products of its digestion are excreted without utilization.
• B) its conformation prevents attack by digestive enzymes.
• C) we lack the enzymes which can catalyze the hydrolysis of the glycosidic linkages.
• D) it passes through the digestive tract so rapidly.
• E) the molecules possess such a high molecular weight.

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