Which of the following statements is FALSE? Group of answer choicesThe amino acid pool is the body's total supply of amino acids in the body's proteins. Fats and carbohydrates are oxidized directly to produce cellular energy. Amino acids can be used to supply energy only after being converted to a citric acid cycle intermediate. Excess carbohydrate and fat can be stored as such, whereas excess amino acids are oxidized for energy or converted to fat or glycogen for storage.

Question:

Which of the following statements is FALSE?

Group of answer choices

A) The amino acid pool is the body's total supply of amino acids in the body's proteins.

B) Fats and carbohydrates are oxidized directly to produce cellular energy.

C) Amino acids can be used to supply energy only after being converted to a citric acid cycle intermediate.

D) Excess carbohydrate and fat can be stored as such, whereas excess amino acids are oxidized for energy or converted to fat or glycogen for storage.

Answer:

The correct answer is C). This option is False as it states that Amino acids can be used to supply energy ONLY after being converted to a citric acid cycle intermediate.

Explanation:

The pathways for the biosynthesis of amino acids are diverse. This means there are more than one way via which amino can be used to supply energy to the body.

For example besides the citric cycle there is also the Urea Cycle.

The urea cycle (also known as the ornithine cycle) is a cycle of biochemical reactions that produces urea (NH2) 2CO from ammonia (NH3). This cycle occurs in ureotelic organisms. The urea cycle converts highly toxic ammonia to urea for excretion.

Urotelic organisms are those which produce surplus or toxic metabolic wastes or excretements (that is substances left over from metabolic processes such as cellular respiration) which cannot be used and must be excreted

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