Question

Read the following statements concerning the villi of the small intestine.

(i) They have very thin walls.

(ii) They have a network of thin and small blood vessels close to the surface.

(iii) They have small pores through which food can easily pass.

(iv) They are finger-like projections.

Identify those statements which enable the villi to absorb digested food.

• A. (i), (ii) and (iv)
• B. (ii), (iii) and (iv)
• C. iii) and (iv)
• D. (i) and (iv)

Answer 1

The correct option is A

(i), (ii) and (iv)

The correct option is A

Explanation for the correct answer:

1. The internal wall of the small intestine has thousands of finger-like growths called villi.
2. The villi boost the surface area to absorb digested food.
3. Each villus has a network of small, fine blood vessels near its surface.
4. The surface of the villi absorbs the digested food.
5. Absorbed materials are transferred through the blood vessels to several organs of the body, where they are utilized to create complex substances such as proteins required by the body.

Explanation for the incorrect answer:

Option B:

Villi do not have pores for absorption.

Option C:

Villi do not have pores for absorption.

Option D:

Given statements are correct but it should also include a second statement.

Final answer:

They have very thin walls, they have a network of thin and small blood vessels close to the surface, and they are finger-like projections that enable the villi to absorb digested food.