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JEE Main levelSingle correct optionDifficulty 2 of 3bm027

Humans cannot digest cellulose because

Acellulose has alpha-1,6 branches
Bcellulose is a polymer of fructose
Ccellulose is soluble in water
Dhumans lack an enzyme that hydrolyses beta-1,4 glycosidic links

Answer: D

Human digestive enzymes hydrolyse alpha links of starch and glycogen. Cellulose has beta-1,4 links, for which humans have no enzyme.

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