Question

7. Why is cellulose rich food a good source of roughage?
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Answer 1

Answer:

-->cellulose breaks down into smaller components which are egested as roughage.

-->human beings do not have cellulose-digesting enzymes. 

Answer 2

Roughage is defined as the " undigested plant material that animals / human may ingest ". Although a requirement for dietary fiber has not been established in horses , some long stem roughage is important for maintenance of normal hind gut function and thus for normal digestion.