In some proteins, an ionic bond may form between an amino acid with
A) a positive R group and an amino acid with a negative R group.
B) a negative R group and a nonpolar amino acid.
C) a sulfhydryl group and an amino acid with an amine group.
D) a carboxyl group and an amino acid with a C-terminal.
E) a glycine and another with a tryptophan.

Question

Quizplus · Accepted Answer

Ionic bonds in proteins typically form between amino acids with oppositely charged R groups, such as a positive R group and a negative R group.

In Some Proteins, an Ionic Bond May Form Between an Amino