Under Physiological Conditions, Amino Acids in Solution Carry

question 28

Multiple Choice

Under physiological conditions, amino acids in solution carry

• A)no electrical charges.
• B)a net positive charge, due to an −NH ₃ ⁺ group or groups.
• C)a net negative charge, due to a −COO ⁻ group or groups.
• D)both −NH ₂ and −COOH groups.
• E)both −NH ₃ ⁺ and −COO ⁻ groups.

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Definitions:

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