- 1(current)
Q. No.Which of the following processes is directly coupled to the electron transport system in cells?
| 1. | Production of pyruvate |
| 2. | Polymerisation of hexoses |
| 3. | Hydrolysis of hexoses |
| 4. | Synthesis of ATP |
Subtopic: Â Oxidative Phosphorylation |Â ETS:2 |Â ETS:1 |Â ETS |
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Level 1: 80%+
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Oxidative phosphorylation is the formation of-
| 1. | ATP in Anaerobic respiration |
| 2. | ATP in aerobic respiration |
| 3. | ATP in glycolysis |
| 4. | ATP in fermentation |
Subtopic: Â Oxidative Phosphorylation |
 89%
Level 1: 80%+
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Consider the given two statements:
| Statement I: | Oxygen acts as the final electron acceptor in the electron transport chain. |
| Statement II: | Water is produced as a result of oxygen accepting electrons. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Â Oxidative Phosphorylation |
 87%
Level 1: 80%+
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Consider the two statements:
1. Statement I is correct: Statement II is incorrect
2. Statement I is correct: Statement II is correct
3. Statement I is incorrect: Statement II is incorrect
4. Statement I is incorrect: Statement II is correct
| Statement I: | The number of ATP molecules synthesised by oxidative phosphorylation in mitochondria depends on the nature of the electron donor. |
| Statement II: | Oxidation of one molecule of NADH gives rise to 2 molecules of ATP, while that of one molecule of FADH2 produces 3 molecules of ATP. |
1. Statement I is correct: Statement II is incorrect
2. Statement I is correct: Statement II is correct
3. Statement I is incorrect: Statement II is incorrect
4. Statement I is incorrect: Statement II is correct
Subtopic: Â Oxidative Phosphorylation |
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Level 1: 80%+
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In the process of ___________, electron transport and ATP synthesis are coupled by a proton gradient across the inner mitochondrial membrane.
1. chemiosmosis
2. deamination
3. anaerobic respiration
4. glycolysis
1. chemiosmosis
2. deamination
3. anaerobic respiration
4. glycolysis
Subtopic: Â Oxidative Phosphorylation |Â ETS |
 85%
Level 1: 80%+
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Match the column:
1. A = (i), B =(ii), C=(iii) , D=(iv)
2. A = (ii), B =(iv), C=(iii) , D=(i)
3. A = (iii), B =(iv), C=(i) , D=(ii)
4. A = (iii), B =(iv), C=(ii) , D=(i)
| Column-I | Column-II | ||
| A. | Peripheral membrane protein of ATP synthase | (i) | Complex -III |
| B. | Pyruvate dehydrogenase complex | (ii) | F0 |
| C. | Integral membrane protein of ATP synthase | (iii) | F1 |
| D. | Cytochrome bc1 | (iv) | Mitrochondrial matrix |
2. A = (ii), B =(iv), C=(iii) , D=(i)
3. A = (iii), B =(iv), C=(i) , D=(ii)
4. A = (iii), B =(iv), C=(ii) , D=(i)
Subtopic: Â Oxidative Phosphorylation |Â Electron Transport Inhibitors |Â Respiratory Quotient |Â ETS:2 |Â ETS:1 |Â ETS |
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Subtopic: Â Oxidative Phosphorylation |Â ETS:1 |Â ETS |
 83%
Level 1: 80%+
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Oxidative phosphorylation in respiration differs from photophosphorylation in photosynthesis because:
| 1. | It occurs in the cytoplasm instead of organelles. |
| 2. | It does not involve a proton gradient for ATP synthesis. |
| 3. | It directly synthesizes ATP without involving any electron transport chain. |
| 4. | It uses oxidation-reduction energy instead of light energy to create a proton gradient. |
Subtopic: Â Oxidative Phosphorylation |
 82%
Level 1: 80%+
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Complex IV is not
| 1. | Cytochrome C oxidase |
| 2. | Cytochrome a and a3 |
| 3. | Two copper centre |
| 4. | One cytochrome C1 |
Subtopic: Â Oxidative Phosphorylation |
 81%
Level 1: 80%+
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Identify A, B, C, and D in the following diagram:
| 1. | A - Inner mitochondrial membrane; B - ; C - ; D - Matrix |
| 2. | A- Inner mitochondrial membrane; B - ; C - Matrix; D - |
| 3. | A - Matrix; B - ; C - Inner mitochondrial membrane; D - |
| 4. | A - Cytoplasm; B - ; C - Matrix; D - |
Subtopic: Â Oxidative Phosphorylation |
 81%
Level 1: 80%+
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- 1(current)
Q. No.
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