Question

The fingerlike outgrowths of Amoeba help ingest food. However, the fingerlike outgrowths of human intestines help to

• A. Digest the fatty food substances
• B. Make the food soluble
• C. Absorb the digested food
• D. Absorb undigested food

Answer 1

The correct option is C

Absorb the digested food

The correct option is C.

Explanations for the correct option:

1. The small intestine is a part of the gastrointestinal tract and is responsible for the absorption of nutrients from digested food molecules.
2. It is divided into three distinct parts - duodenum, jejunum, and ileum.
3. The surface of the jejunum contains microscopic, fingerlike projections known as villi.
4. These structures are enriched with capillaries and help absorb nutrients directly into the bloodstream.
5. The high number of absorption provides increased surface area for absorption of nutrients.

Explanations for the incorrect options:

Option A:

Digestion of fat particles happens in the small intestine where the bile, produced by the liver results in the emulsification of fats.

Option B:

The teeth present in the mouth help in physically breaking down the food particles and saliva chemically breaks down the food.

Option D:

The undigested food is passed into the large intestine where water is reabsorbed and the undigested particles are eliminated in the form of faeces.

Final answer: The fingerlike outgrowths of Amoeba help ingest food. However, the fingerlike outgrowths of human intestines help to absorb the digested food.