The structure of a fibrous protein comprises of polypeptide chains in the form of:
Correct answer: C. Long strands or fibrils
- A. Cluster
- B. Spherical or curried up ball
- C. Long strands or fibrils
- D. Flat uncoiled chains
Explanation
The options describe different conformations of polypeptide chains.Option A describes a formation, not characteristic of fibrous proteins.Option B describes the conformation of globular proteins.Option C describes that of fibrous proteins.Option D most probably is indicative of beta pleated sheets or another structure, not characteristic of fibrous protein.
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About Proteins
Proteins are polymers of amino acids joined by peptide bonds, and their function depends on primary, secondary, tertiary and quaternary structure. The topic covers fibrous and globular proteins, enzymes, antibodies, hormones and transport proteins, as well as denaturation by heat or extreme pH.
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