MCAT Physical : Amino Acids and Classification

Study concepts, example questions & explanations for MCAT Physical

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Example Questions

Example Question #192 : Biochemistry, Organic Chemistry, And Other Concepts

Which of the following amino acids are acidic?

I. Glutamate

II. Proline

III. Glycine

IV. Arginine

Possible Answers:

I only

I, II and IV

I and IV

II and III

Correct answer:

I only

Explanation:

Glutamate (glutamic acid), is the only one of which that contain an acidic functional group (carboxylic acid). Arginine is basic while proline and glycine considered non-polar.

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