Which of the Following Is Not an Essential Amino Acid

question 63

Multiple Choice

Which of the following is not an essential amino acid?

• A) alanine
• B) leucine
• C) isoleucine
• D) valine
• E) tryptophan

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Definitions:

Lens Flattens

A process where the lens of the eye changes shape, becoming less curved, to focus distant objects clearly onto the retina.

Ciliary Muscles

Ring-shaped muscles located in the eye that control the shape of the lens to focus on objects at varying distances.

Pupil Diameter

The size of the opening in the center of the iris of the eye, which varies to regulate the amount of light reaching the retina.

Hyperpolarizing

Pertains to the increase in a cell's membrane potential, making it more negative.