STANDARD Chemistry Protein Structure MCQ Question
Most common types of secondary structures of proteins are
α-helix and β-helix structures
α-helix and β-pleated sheet structures
right and left hand twisted structures
globular and fibrous structures.
Correct Answer
Detailed Explanation
Due to regular folding of backbone of the peptide chain, two most common secondary structures of proteins are α-helix and β-pleated structures. In α-helix, all H-bonds are formed by twisting the chain into a right handed helix. In β-pleated, all peptide chains are stretched to maximum extension and then laid side by side and connected by hydrogen bonds.
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