Question

What is the importance of roughage in our diet?
1. It helps in retaining water in the body.
2. It is necessary for normal functioning of the liver.
3. It adds bulk to the food and prevents constipation.

• A. 1 and 2
• B. 2 and 3
• C. 1 and 3
• D. 3 only

Answer 1

The correct option is option (C):

Explanation for the correct option:

1. Roughages are also called dietary fibres.
2. Roughages are polysaccharides which cannot be hydrolysed by the digestive enzymes.
3. Inclusion of roughage in diet is very important.
4. Fibre can absorb water and can retain it in the body.
5. Dietary fibres soften the faeces and bring comfortable defecation and thus prevent the constipation.

Explanation for the incorrect option:

Other options A,B and D didnot satisfy the appropriate explanation of the given question.

Final answer: Roughages help in the retaining of water in the body and also prevent constipation.