Question

Cellulose present in plants and as food for cattle but not for human beings because

• A. Human body does not contain cellulose hence cellulose cannot be broken down plant cellulose in small pieces
• B. Human saliva cannot break down plant cellulose in small pieces
• C. Bile juice present in cattle helps them to digest cellulose
• D. Human beings have a smaller stomach than cattle.

Answer 1

Answer: (A)

Human body does not contain cellulose hence cellulose cannot be broken down plant cellulose in small pieces

Answer 2

The enzyme cellulose present in the stomach of cattle breaks cellulose into D – Glucose and is easily digested. But, it is not present in the human body hence cellulose can not be broken down into D-glucose in human body and can not act as food for human beings.