What is the reason for the planar geometry of the peptide bond in proteins?
A) Proteins contain only L amino acids.
B) Hydrogen bonding.
C) Steric hindrance.
D) The peptide bond is trans rather than cis.
E) The partial double bond character of the carbon-nitrogen bond.

Question

Quizplus · Accepted Answer

The partial double bond character of the carbon-nitrogen bond creates a rigid planar geometry in the peptide bond. This is because the double bond character restricts rotation around the bond, leading to a flat and stable conformation.

What Is the Reason for the Planar Geometry of the Peptide