The side chain (r group) of the amino acid serine is ch₂oh. the side chain of the amino acid leucine is ch₂ch(ch₃)₂. where would you expect to find these amino acids in a globular protein in aqueous solution? a) both serine and alanine would be in the interior and on the exterior of the globular protein. b) alanine would be in the interior, and serine would be on the exterior of the globular protein. c) serine would be in the interior, and alanine would be on the exterior of the globular protein. d) both serine and alanine would be in the interior of the globular protein. e) both serine and alanine would be on the exterior of the globular protein.