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.
This question appeared on the UHS MDCAT 2019 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Practise Biological Molecules
1,790 free Biological Molecules MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.