Match List-I with List-II and choose the correct answer from the options given below:
Column I
A. Primary structure of protein
B. Secondary structure of protein
C. Tertiary structure of protein
D. Quaternary structure of protein
Column II
I. Human haemoglobin
II. Disulphide bonds
III. Polypeptide chain
IV. Alpha helix and beta sheet
Correct answer: A → III, B → IV, C → II, D → I
Solution
Primary structure of protein is its polypeptide chain (linear sequence of amino acids) (A-III); Secondary structure is characterised by alpha helix and beta sheet (B-IV); Tertiary structure is stabilised by disulphide bonds among other interactions (C-II); Quaternary structure is exemplified by human haemoglobin, made of multiple polypeptide subunits (D-I).
ConceptLevels of protein structure
Biomolecules in past papers
107 questions from this chapter have appeared across 26 exam years.
