Which of the following statements about amino acids is FALSE? Amino acids are th

Question

Which of the following statements about amino acids is FALSE? Amino acids are the monomeric units for building proteins. Some amino acids have more than one chiral carbon. 18 of the 20 standard amino acids are composed exclusively from carbon, nitrogen, oxygen and hydrogen. Every amino acid has at least two ionizable groups. All of the standard amino acids have stereoisomers. Which of the following statements about isoelectric points is TRUE? The isoelectric point is the net charge on the molecule at physiological pH. For both diprotic and triprotic amino acids the pi is calculated by the average of the two pKas on either side of the neutral species. When the pH is lower than the isoelectric point the molecule will carry a net negative charge. B and C are true A, B and C are true.

Explanation / Answer

Amino acids false statement regarding it,

E. all standard amino acids have steroisomers

glycine is a achiral amino acids

Isoelectric point true statement would be,

A. and B.

Isoelectric point is when the net charge on the amino acid is zero.

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