Question
NEET 2022 (paraphrased): Regarding nutrition in animals, which of the following statements is correct? (a) stomach pH refers to protein-digesting enzyme, activated from pepsinogen (b) pepsin is characterised by around 1.5–2 due to HCl (c) bile — emulsifies fats; made in liver, stored in gall bladder (d) villi has no role in nutrition in animals
Solution — Step by Step
This option swaps the definitions. stomach pH is actually around 1.5–2 due to HCl, not what (a) claims. So (a) is out.
Similarly, pepsin means protein-digesting enzyme, activated from pepsinogen. Option (b) is mismatched. Out.
This one reads correctly: bile — emulsifies fats; made in liver, stored in gall bladder. Match with NCERT wording confirms it.
villi — finger-like projections in small intestine increasing absorption surface — plays a real role in nutrition in animals, so option (d) is factually wrong.
Correct answer: (c) bile — emulsifies fats; made in liver, stored in gall bladder.
Why This Works
NEET PYQs on nutrition in animals rely on definition swapping. The examiner takes two correct facts and pairs them with the wrong terms. If you know each fact cold, the MCQ dissolves in 20 seconds.
Alternative Method
For definition-swap MCQs, don’t read all four options first. Read option (a), decide true/false, then (b), and so on. This prevents confusion between similar-looking options.
NEET reuses the same fact set every 2–3 years with different distractors. Master the four NCERT facts on nutrition in animals listed here and you’ll handle almost any MCQ on this chapter.
Common Mistake
Students second-guess themselves when they see a familiar option listed as “wrong” in the stem. Trust the elimination — if you know the definition, stick with it.
Keep a one-page sheet of definitions for every NEET chapter. Revise only that sheet in the last 48 hours before the exam.