Tag: GATE Life Science Previous Year Papers with Solutions

18. Oxidation of one molecule of glucose via the glycerol-phosphate shuttle produces (A) 32 molecules of ATP (B) 32 molecules of NADPH (C) 30 molecules of ATP (D) 30 molecules […]

17. Which one of the following bases is NOT found in the T-arm of an aminoacyl t-RNA? (A) Dihydrouridine (B) Pseudouridine (C) Uracil (D) Guanine The correct answer is (D) Guanine. […]

16. Which one of the following small molecules is a prerequisite for fatty acid oxidation? (A) Inositol (B) Choline (C) Carnitine (D) Glycerol Carnitine is the prerequisite small molecule for […]

Q.15 For the process, H2O(l) ⇌ H2O(s) at 0 o C and 1 atm, the correct statement is (A) ΔSsystem = 0 (B) ΔStotal > 0 (C) ΔStotal = 0 […]

Q.14 The molar enthalpy of vaporization for a liquid (normal boiling point = 78.3 oC is 39 kJ mol−1. If the liquid has to boil at 25 oC, the pressure […]

Q.13 The order of resonance energy for the following molecules is (A) (1) > (3) > (2) > (4)   (B) (1) > (3) > (4) > (2) (C) (1) > […]

Q.12 The major product from the following reaction is Problem Overview The given reaction sequence involves three electrophilic aromatic substitution (EAS) steps on tert-butylbenzene: SO₃ / H₂SO₄ → Sulfonation HNO₃ […]

Q.11 Among the following reactions, the one that produces achiral alcohol (after hydrolysis) is Introduction Grignard reagents are powerful nucleophiles that react with carbonyl compounds to form alcohols after hydrolysis. […]

Q.10 In compounds K4[Fe(CN)6] (P) and Fe(CO)5 (Q), the iron metal centre is bonded to (A) C of CN− in P and C of CO in Q (B) N of […]

Q.9 Among the following pairs, the paramagnetic and diamagnetic species, respectively, are (A) CO and O2− (B) NO and CO (C) O22−and CO (D) NO+and O2− CO is diamagnetic while […]