GATE BT 2025 Paper 1 — page 13

Questions 37–39 of 65. Imported answers require review unless explicitly marked reviewed.

Correctly match the Inhibitor with its respective Function in mitochondrial respiration.

Inhibitor	Function
P. FCCP	1. Inhibits cytochrome c oxidase
Q. Cyanide	2. Makes the membrane permeable to protons
R. Oligomycin A	3. Blocks mitochondrial uptake of succinate
S. Butyl malonate	4. Inhibits ATP synthase

Your answerChoose one option.

P-2; Q-1; R-4; S-3

P-2; Q-3; R-1; S-4

P-2; Q-4; R-3; S-1

P-3; Q-1; R-2; S-4

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An octapeptide composed of these L-amino acids — Lys, Thr, Ser, Met, Arg, Trp, Tyr, Glu — was subjected to analyses with the following outcomes:

P. The N-terminal sequencing analysis by Sanger’s method yielded ‘Ser’ at the N-terminus Q. Chymotrypsin treatment gave a pentapeptide, a ‘Tyr’ containing dipeptide and a free ‘Glu’ R. Cyanogen bromide treatment gave two tetrapeptides S. Trypsin treatment gave two tripeptides and a dipeptide

Which one of the following is the correct octapeptide sequence?

Your answerChoose one option.

Ser-Tyr-Arg-Met-Lys-Thr-Trp-Glu

Ser-Arg-Lys-Met-Tyr-Thr-Trp-Glu

Ser-Met-Lys-Arg-Thr-Tyr-Trp-Glu

Ser-Arg-Met-Lys-Trp-Thr-Tyr-Glu

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Correctly match the type of Hypersensitivity reaction with its respective Example.

Your answerChoose one option.

P-3; Q-4; R-2; S-1

P-4; Q-3; R-1; S-2

P-4; Q-3; R-2; S-1

P-2; Q-3; R-4; S-1

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2025 · Paper 1

Question 37

Question 38

Question 39