Same chapter3 marksDifficulty: Medium
Explain competitive inhibition of an enzyme with an example.
Biomolecules
3 marksDifficulty: Medium
Describe the four levels of protein structure.
Original Khojo Papers practice question — not from a past board paper.
Answer
The primary structure is the sequence of amino acids in the chain. The secondary structure is the local folding into an alpha helix or a beta pleated sheet, held by hydrogen bonds. The tertiary structure is the overall three-dimensional folding of the whole chain. The quaternary structure is the arrangement of two or more folded chains in a single functional protein.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Haemoglobin, with four chains, has a quaternary structure; myoglobin, with one, does not.
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