Respiration Questions, Paper 05, Subject: Biology, Topic: Respiration, Type: MCQs (Multiple Choice Questions)
| 1. | Discovery of photorespiration is based on (a) Warburg effect (b) Pasteur effect (c) Richmond-Lang effect (d) Cholodny-Went effect Answer: (a) |
| 2. | During 24 hours there is a time when plants neither give O2 nor CO2. this is the time of (BHU 1984, 91) (a) Night (b) Daylight (c) Twilight (d) None of these Answer: (c) |
| 3. | During anaerobic respiration, decarboxylation reaction occurs in (a) Cytoplasm (b) Mitochondrial matrix (c) Cristae (d) F1 particles Ans: (a) |
| 4. | During anaerobic respiration, one molecule of pyruvic acid (Rajasthan PMT 1985; BHU 1985; CPMT 1988) (a) Losses 3 molecules of ATP (b) Losses 6 molecules of ATP (c) Gains 2 molecules of ATP (d) Gains 4 molecules of ATP Answer: (a) |
| 5. | During respiration, pyruvic acid is formed by (CPMT 1986; BHU 1995) (a) Glycolysis (b) Krebs cycle (c) HMP pathway (d) None of the above Answer: (a) |
| 6. | Electron carries if oxidative phosphorylation are present on (a) Outer membrane of mitochondria (b) Inner membrane of Mitochondria (c) Thylakoid membrane of chloroplast (d) Matrix of mitochondria Ans: (b) |
| 7. | EMP can produce a total of (a) 6 ATP (b) 8 ATP (c) 24 ATP (d) 38 ATP Ans: (b) |
| 8. | End product of citric acid / Krebs cycle is (a) citric acid (b) lactic acid (c) pyruvic acid (d) CO2 + H2O Ans: (d) |
| 9. | End product of glycolysis is (a) Acetyl CoA (b) Pyruvic Acid (c) Glucose 1 – phosphate (d) Fructose 1 – Phosphate Ans: (b) |
| 10. | End products of aerobic respiration are (a) Sugar and Oxygen (b) water and Energy (c) Carbon dioxide, water and energy (d) Carbon dioxide and energy Ans: (c) |
| 11. | Energy currency (reservoir) of the cells is (a) AMP (b) ATP (c) RNA (d) DNA Ans: (b) |
| 12. | Energy is released during (a) Citric acid → Isocitric acid (b) Isocitric acid → cis – Aconitic acid (c) Glucose 1- P → cis – Glucose 6-P (a) Pyruvate → Acetyl CoAAns: (d) |
| 13. | Enzymes of oxydative phosphorylation found in (Rajasthan PMT 1995) (a) Endoplasmic reticulum (b) Chloroplast (c) Mitochondria (d) Golgi complex Answer: (c) |
| 14. | Enzymes taking part in glycolysis are present in (a) Mitochondria (b) Cytoplasm (c) Both Mitochondria and cytoplasm (d) Vacuole Ans: (b) |
| 15. | ETC and TCA enzymes occur in (a) Ribosomes (b) Endoplasmic reticulum (c) Mitochondria (d) Cytoplasm and nucleus Ans: (c) |
| 16. | Evolution of CO2 is more than intake of oxygen when (MP PMT 1987; Delhi PMT 1990) (a) Socrose is respired (b) Glucose is respired (c) Organic acids are respired (d) Fats are respired Answer: (c) |
| 17. | FAD is electron acceptor during oxidation of (a) α – Ketoglutarate → Succinyl acid (b) Succinic acid → Fumaric acid (c) Succinyl CoA → Succinic acid (d) Fumaric acid → Malic acid Ans: (b) |
| 18. | Fermentation produces (a) Protein and acetic acid (b) Alcohol and lipoprotein (c) Alcohol, lactic acid, etc. (d) Ethers and acetones Ans: (c) |
| 19. | Fermentation products of yeast are (a) H2O + CO2 (b) Methyl alcohol + CO2 (c) Methyl alcohol + water (d) Ethyl alcohol +CO2 Ans: (d) |
| 20. | Final electron acceptor in respiration is (a) Hydrogen (b) Oxygen (c) Cytochromes (d) Dehydrogenases Ans: (b) |