NUTRITION
CARBOHYDRATES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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cellulose
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starch
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chitin
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glycogen
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Detailed explanation-1: -Roughage is the fibrous matter in food. It cannot be digested by human digestive system. It is mainly made of indigestible carbohydrate called ‘cellulose’, which is present in plant cell walls.
Detailed explanation-2: -However, the main component, cellulose, is an indigestible plant fiber that is thought to be difficult for humans to use as energy. Herbivores acquire energy through the degradation of cell wall-derived dietary fiber by microorganisms in the digestive tract.
Detailed explanation-3: -Why can’t humans digest cellulose? Humans cannot digest cellulose because they lack the enzymes essential for breaking the beta-acetyl linkages. The undigested cellulose acts as fibre that aids in the functioning of the intestinal tract.