Question

Which of these statements is true about the secondary structure of proteins?

(a) Secondary structure of protein occurs only in the form of helices

(b) Protein helices are always double-stranded

(c) Protein helices and right-handed

(d) Entire primary structure of the protein is folded into a helix

The question was posed to me in an interview for internship.

My question is from Biomolecules in chapter Biomolecules of Biology – Class 11

Answer 1

Right choice is (c) Protein helices and right-handed

Explanation: Protein helices are always right-handed. The secondary structure occurs in the form of helices and sheets. They are always single stranded and only parts of the protein chain is folded into helices.