The trans configuration of most peptide groups is adopted in cells because it
A)is the only one available.
B)minimizes steric hindrance of R groups.
C)is favored in protein synthesis.
D)Both B and C.
E)All of the above.

Question

Quizplus · Accepted Answer

The trans configuration of peptide groups is favored in cells because it minimizes steric hindrance of R groups, allowing the polypeptide chain to fold into a more compact structure. This configuration is also favored during protein synthesis, where the amino acid residues are linked together to form a polypeptide chain. Therefore, choice B and C are both correct. Choice A is incorrect because the cis configuration is also available, but less favored due to its higher energy state. Therefore, the best choice is D, as it combines both B and C as correct explanations.

The Trans Configuration of Most Peptide Groups Is Adopted in Cells