| List-I | List-II | ||
| A. | Citric acid cycle | I. | Cytoplasm |
| B. | Glycolysis | II. | Mitochondrial matrix |
| C. | Electron transport system |
III. | Intermembrane space of mitochondria |
| D. | Proton gradient | IV. | Inner mitochondrial membrane |
| Assertion (A): | ATP is used at two steps in glycolysis. |
| Reason (R): | First ATP is used in converting glucose into glucose-6-phosphate and second ATP is used in conversion of fructose-6-phosphate into fructose-1-6-diphosphate. |
| 1. | (A) is False but (R) is True. |
| 2. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 3. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 4. | (A) is True but (R) is False. |
| 1. | Eight | 2. | Four |
| 3. | Six | 4. | Two |
Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalyzed by:
| 1. | Phosphofructokinase | 2. | Aldolase |
| 3. | Hexokinase | 4. | Enolase |
| A. | Cellular respiration is the breaking of C-C bonds of complex organic molecules by oxidation. |
| B. | The entire cellular respiration takes place in mitochondria. |
| C. | Fermentation takes place under anaerobic conditions in germinating seeds. |
| D. | The fate of pyruvate formed during glycolysis depends on the type of organism also. |
| E. | Water is formed during respiration as a result of \(O_2\) accepting electrons and getting reduced. |
| 1. | Less than 7% | 2. | Approximately 15% |
| 3. | More than 18% | 4. | About 10% |
| List-I | List-II | ||
| A. | ETS Complex I | I. | NADH Dehydrogenase |
| B. | ETS Complex II | II. | Cytochrome bC1 |
| C. | ETS Complex III | III. | Cytochrome C oxidase |
| D. | ETS Complex IV | IV. | Succinate Dehydrogenase |
| 1. | A-IV, B-I, C- III, D- II |
| 2. | A-I, B-IV, C- II, D- III |
| 3. | A-III, B-I, C- IV, D- II |
| 4. | A-I, B-II, C- IV, D- III |
| A. | Energy of oxidation-reduction is utilised for phosphorylation |
| B. | Oxygen acts as the final hydrogen acceptor |
| C. | The photo-oxidative energy is utilised for production of proton gradient required for phosphorylation |
| D. | The role of oxygen is limited to the terminal stage of the respiration process |
| E. | Protons cross the outer membrane of mitochondria through the channel formed by an integral membrane protein complex |
| 1. | A, B, C, E only | 2. | A, B, D only |
| 3. | B, C, D, E only | 4. | A, C, D only |
| 1. | Succinic acid \(\rightarrow\) Malic acid |
| 2. | Succinyl-CoA \(\rightarrow\) Succinic acid |
| 3. | Isocitrate \(\rightarrow\) \(\alpha\) - ketoglutaric acid |
| 4. | Malic acid \(\rightarrow\) Oxaloacetic acid |