Proteins - MCAT Chemical and Physical Foundations of Biological Systems

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Question

Which of the following amino acids are acidic?

I. Glutamate

II. Proline

III. Glycine

IV. Arginine

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Answer

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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