The Peptide Alanylglutamylglycylalanylleucine Has

Question

The peptide alanylglutamylglycylalanylleucine has:
A) a disulfide bridge.
B) five peptide bonds.
C) four peptide bonds.
D) no free carboxyl group.
E) two free amino groups.

Accepted Answer

This peptide has four peptide bonds, as indicated by the presence of four different amino acids in the sequence. There is no mention of a disulfide bridge, and the presence of multiple free amino or carboxyl groups is not indicated.