Question

Some features of villi of the small intestine in humans are given below: Which option/options shows/show the features that enable the villi to absorb food?

1. i) They are finger-like with very thin walls
2. (ii) Provide a large surface area
3. (iii) Have small pores for food to pass
4. (iv) Richly supplied by blood capillaries

• A. 1, 2, 4
• B. 1, 3
• C. 4 only
• D. All

Answer 1

Answer:

A. 1, 2, 4

• Villi present in the small intestines of humans are finger-like projections having very thin walls with a rich supply of blood vessels.

• Villi provide a larger surface area in the inner lining of the small intestine and helps in larger absorption of nutrients with the increase in surface area.

• Villi is richly supplied with blood capillaries that helps in the absorption of digested food and carrying it to the blood stream.