NEET BIOLOGY

HUMAN PHYSIOLOGY

DIGESTION AND ABSORPTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is/are true of fibre?I. It is digested but not absorbedII. Cellulose acts as fibre in the human gutIII. It is egested
A
I only
B
II only
C
III only
D
II and III only
Explanation: 

Detailed explanation-1: -Fiber is a type of carbohydrate that the body can’t digest. Though most carbohydrates are broken down into sugar molecules called glucose, fiber cannot be broken down into sugar molecules, and instead it passes through the body undigested.

Detailed explanation-2: -Insoluble fiber does not blend with the water and passes through the digestive system mostly intact. It functions mostly as a “bulking” agent, and may help speed the passage of food and waste through your gut ( 5 ).

Detailed explanation-3: -Unlike other food components, such as fats, proteins or carbohydrates-which your body breaks down and absorbs-fiber isn’t digested by your body. Instead, it passes relatively intact through your stomach, small intestine and colon and out of your body.

Detailed explanation-4: -Foods derived from plants, including fruits, vegetables and grains, contain fiber, the portion of the plant the human body cannot digest. Because your body cannot digest fiber, it doesn’t provide calories for energy or nutrients for cells.

There is 1 question to complete.