Question

The finger-like outgrowths of Amoeba helps to ingest food.
However, the finger-like outgrowths of human intestine helps
to
(a) digest the fatty food substances.
(b) make the food soluble.
(c) absorb the digested food.
(d) absorb the undigested food.


NCERT Class VIII
Science - Exemplar Problems

Chapter 2. Nutrition in Animals

Answer 1

c)absorb the digested food
they are known as villi.

Answer 2

The finger-like outgrowths of Amoeba help to ingest food. However, the finger-like outgrowths of the human intestine help to absorb the digested food.(option - c).

• The small intestine consists of finger-like projections formed by modification of mucosa layer called villi which help in the absorption of food.
• The villi project towards the intestinal luminal cavity.
• The villi consist of small fibers called microvilli which further increase the surface area for absorption of digested food.
• The villus consists of columnar cells and goblet cells which secrete mucus.
• Villi also flow by contracting motions that increase the blood and lymph flow again enhancing the absorption.