Which statement BEST describes why proteins are metabolized when calories are severely reduced?
A) Actually, fats are metabolized during a starvation diet, not proteins.
B) Proteins have the highest energy content per gram of any of the biomolecules.
C) Proteins contain amino acids, which fuel the brain.
D) Glycogen is a type of protein.
E) There is a metabolic pathway in which glucose can be made from protein.

Question

Quizplus · Accepted Answer

When calories are severely reduced, the body may need to metabolize proteins for energy. This is because proteins can be broken down into amino acids, which can then be used in gluconeogenesis, a metabolic pathway where glucose is synthesized from non-carbohydrate sources, including amino acids. This process is crucial during times of fasting or severe calorie restriction, as it helps maintain blood glucose levels, providing energy for the brain and other organs that rely on glucose as a primary energy source.

Which Statement BEST Describes Why Proteins Are Metabolized When Calories