Question

"In a protein, peptide bonds connect ...

A. C=O to N-H.
B. N-H to C-H.
C. C-R to N-H.
D. C=O to C-R.
E. All the above."

Answer 1

Peptide bonds connect the carboxyl group (C=O) of one amino acid to the amino group (N-H) of another amino acid.

Step-by-step explanation:

A. C=O to N-H. Peptide bonds connect the carboxyl group (C=O) of one amino acid to the amino group (N-H) of another amino acid. This reaction releases a molecule of water and forms an amide linkage.