NEET 2020 · BiologyCell compositionPrevious Year Question
Which one of the following is the most abundant protein in the animals?
Answer: (D) Collagen. Answer: (D) Collagen.
- A.Lectin
- B.Insulin
- C.Haemoglobin
- D.Collagen✓
Correct Answer
(D) Collagen
Solution & Explanation
Answer: (D) Collagen. Solution: Proteins perform many functions and differ greatly in abundance. NCERT states plainly that collagen is the most abundant protein in the animal world (while RuBisCO is the most abundant protein in the whole biosphere). Insulin and haemoglobin are functionally important but far less abundant, and lectins are minor secondary-metabolite proteins, so collagen is correct. NCERT Reference: Ch 9, p.110, line ~27 — "Collagen is the most abundant protein in animal world"
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