Which Statement Is NOT a Similarity in the Synthesis of Isoleucine

question 15

Multiple Choice

Which statement is NOT a similarity in the synthesis of isoleucine, valine, and leucine?

• A) Pyruvate is the starting compound for synthesis of all these amino acids.
• B) Pyridoxal phosphate is a required cofactor in the synthesis of all these amino acids.
• C) These are all essential amino acids in humans.
• D) An \(\alpha\)-keto acid is the immediate precursor for all three synthetic pathways.
• E) Acetyl-CoA is required as a substrate in all three synthetic pathways.

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Definitions:

Rectus Abdominis

A long muscle in the front of the abdomen that assists in breathing and stabilizes the core during movements.

External Oblique

A muscle in the abdomen that forms part of the abdominal wall, helping in the rotation and lateral flexion of the trunk.

Sternomastoid

Also known as the sternocleidomastoid muscle, it is a prominent muscle in the neck that plays a key role in rotating and flexing the head.