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प्रश्न
Cellulose-rich food substances are good source of roughage in human beings because ______.
पर्याय
human beings do not have cellulose-digesting enzymes.
cellulose gets absorbed in the human blood and converts into fibres.
the cellulose-digesting bacteria convert cellulose into fibres.
cellulose breaks down into smaller components which are egested as roughage.
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उत्तर
Cellulose-rich food substances are good source of roughage in human beings because human beings do not have cellulose-digesting enzymes.
Explanation:
Human beings do not have cellulose-digesting enzymes in their bodies and are therefore unable to digest cellulose. Since it is not digested, it passes down the entire digestive tract from mouth to anus. It acts as roughage, adds bulk to the food and helps the body to easily get rid of undigested food.
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