Question

The process of oxidation of food is necessary to

• A. Digest food
• B. Release energy
• C. Ingest food
• D. Absorb digested nutrients

Answer 1

The correct option is B

Release energy

The correct option is B.

Explanation of the Correct Option:

• The nutrients present in the food are received by the cells from the blood circulation. Oxidation of these nutrients like carbohydrates helps in the liberation of energy that can be used for cellular activities.
• The process of oxidizing the food material to generate energy is cellular respiration. It occurs in the cytoplasm and mitochondria of the cell.

Explanation of Incorrect Options:

Option A:

• The digestion of food occurs by breaking the food products.

Option C:

• The ingestion of food occurs by taking the food inside the body.

Option D:

• The digested nutrients are absorbed by transferring them into the blood circulation.

Therefore, the oxidation of food is essential for the liberation of energy.