Question

Which of the following statements is true? A. The zwitterionic form of an amino acid is predominant at physiological pH. B. The amino acid glycine can be made from serine metabolically. C. PKU is caused by the inability to metabolize phenylalanine. D. All are true. E. All are false

          Which of the following statements is true?

A. The zwitterionic form of an amino acid is predominant at physiological pH.
B. The amino acid glycine can be made from serine metabolically.
C. PKU is caused by the inability to metabolize phenylalanine.
D. All are true.
E. All are false

Which of the following statements is true?

A. The zwitterionic form of an amino acid is predominant at physiological pH.
B. The amino acid glycine can be made from serine metabolically.
C. PKU is caused by the inability to metabolize phenylalanine.
D. All are true.
E. All are false

Added by Daniela S.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Madhur L

11/22/2023

Step 1

This statement is true because at physiological pH (around 7.4), amino acids exist primarily in their zwitterionic form, where the amino group is protonated and the carboxyl group is deprotonated. Show more…

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Which of the following statements is true? A. The zwitterionic form of an amino acid is predominant at physiological pH. B. The amino acid glycine can be made from serine metabolically. C. PKU is caused by the inability to metabolize phenylalanine. D. All are true. E. All are false