95. Given below are two statements:
Statement I: The peptide bond is a planar bond
Statement II: The Ramachandran Plot describes Omega Torsion Angles in proteinsIn light of the
above statements, choose the most appropriate answer from the optionsgiven below
(a) Both Statement I and Statement II are correct,
(b) Both Statement I and Statement II are incorrect,
(c) Statement I is correct and Statement II is incorrect,
(d) Statement II is correct and Statement I is incorrect

Detailed Explanation:

Proteins are complex molecules composed of amino acids linked by peptide bonds, and their 3D structure is critical for function. Two important concepts in protein structure are the planarity of peptide bonds and the Ramachandran plot, which helps visualize conformational angles.

Statement I: The peptide bond is a planar bond

Correct.
The peptide bond between amino acids is planar due to partial double bond character arising from resonance between the carbonyl and amide groups. This restricts rotation around the bond, making it rigid and flat (planar), which is a crucial feature influencing protein folding and stability.

Statement II: The Ramachandran Plot describes Omega Torsion Angles in proteins

Incorrect.
The Ramachandran plot actually describes the Phi (φ) and Psi (ψ) torsion angles, which are rotations around the N-Cα and Cα-C bonds of the protein backbone.
The Omega (ω) angle refers to the rotation around the peptide bond (C-N), which is typically fixed at around 180° (trans) due to its planarity.

Final Answer:

(c) Statement I is correct and Statement II is incorrect