Human being can not digest cellulose , yet it is recommended that they should eat fruits and vegetables rich in cellulose .why?

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Solution

Humans do not have enzymes to digest cellulose as other herbivores do yet they take vegetables and fruits as they form an important source of nutrients, vitamins and minerals which are important nutrients. Cellulose forms a part of roughage and it helps in smooth bowling movement of the food and aids in digestion.

Sp, in short, even though cellulose cannot be digested by humans, cellulose helps in better suggestion and excretion.

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Why humans can't digest cellulose

Question 12
Cellulose-rich food substances are good source of roughage in human beings because

(a) Human beings do not have cellulose-digesting enzymes
(b) Cellulose gets absorbed in the human blood and converts into fibres.
(c) The cellulose-digesting bacteria convert cellulose into fibres.
(d) Cellulose breaks down into smaller components which are egested as roughage.

Q. Why are humans unable to digest cellulose?

Assertion (A): Cellulose-rich food cannot be digested by humans.
Reason (R): Humans have cellulase-producing bacteria in the stomach.

Q. Assertion :Cellulose is not digested by human beings Reason: Cellulose is a polymer of

β

-D-glucose

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