Question

A person on a strict diet and exercise regimen lost 7 kg (about 15 pounds) of body fat in just two weeks. What is the most likely way that the lost fat left the body? (A) It was released as CO₂ and H₂O. (B) It was converted to heat and then released. (C) It was converted to ATP, which weighs much less than fat. (D) It was eliminated from the body as feces.

Answer 1

The most likely way that the lost fat left the body of a person on a strict diet and exercise regimen who lost 7 kg (about 15 pounds) of body fat in just two weeks is (A) It was released as CO₂ and H₂O.

Fats are the lipid molecules made of a glycerol backbone with 2 fatty acids and a phosphate head group. The body of an organism uses fat as an energy source, but it is the predominant form of storage of energy in the body. Fats can be of two types: good fat and bad fat. Only the food fat consumed in required amounts is beneficial for the body.

Strict diet is the calorie-restricted diet with fixed timings of meals. The restrictions and timings vary from person to person. When a person follows a strict diet along with exercise, beta-oxidation occurs inside the body where the fat is lost in the form of carbon dioxide and water.

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