Q. No.NADH is produced during
| 1. | glycolysis |
| 2. | oxidation of pyruvate |
| 3. | Krebs cycle |
| 4. | All of the above |
Subtopic: Glycolysis | Kreb's Cycle | ETS |
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Level 1: 80%+
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Which of the following correctly describes the role of oxygen in the electron transport system (ETS)?
| 1. | It donates electrons to Complex I, starting the electron transport process. |
| 2. | It acts as the final electron acceptor, combining with electrons and protons to form water. |
| 3. | It facilitates the transfer of electrons between Complex III and cytochrome c. |
| 4. | It is reduced to NADH and FADH2 during the citric acid cycle. |
Subtopic: ETS |
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Level 1: 80%+
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The amount of energy which is produced by one molecule of FADH2 and one molecule of NADH?
| 1. | 2 ATPs, 3 ATPs |
| 2. | 5 ATPs, 3 ATPs |
| 3. | 3 ATPs, 3 ATPs |
| 4. | 3 ATPs, 2 ATPs |
Subtopic: ETS:2 | ETS:1 | ETS |
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Level 1: 80%+
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How is the energy released from the oxidation of NADH (which has a high reduction potential) ultimately harnessed during oxidative phosphorylation?
| 1. | It is directly transferred to ADP in a single step to form ATP. |
| 2. | It is stored primarily as heat to maintain cellular temperature. |
| 3. | It is used to create a proton gradient; the energy of protons flowing down this gradient then powers ATP synthesis. |
| 4. | It is used to phosphorylate glucose at the start of glycolysis. |
Subtopic: ETS |
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Level 1: 80%+
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Where does ETS occur?
| 1. | Inner Mitochondrial Membrane |
| 2. | Peri Mitochondrial Space |
| 3. | Outer Mitochondrial Membrane |
| 4. | Inter Membrane Space |
Subtopic: ETS:2 | ETS:1 | ETS |
94%
Level 1: 80%+
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Match the processes involved in aerobic respiration given in Column I with its occurrence in cell from Column II and choose the correct option:
1. i-b, ii-a, iii-c
2. i-c, ii-b, iii-a
3. i-c, ii-a, iii-b
4. i-a, ii-c, iii-b
| Column I | Column II | ||
| i. | Glycolysis | a. | Mitochondrial matrix |
| ii. | Krebs cycle | b. | Cytoplasm |
| iii. | ETS | c. | Inner mitochondrial membrane |
2. i-c, ii-b, iii-a
3. i-c, ii-a, iii-b
4. i-a, ii-c, iii-b
Subtopic: ETS |
92%
Level 1: 80%+
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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: Oxidative Phosphorylation | ETS:2 | ETS:1 | ETS |
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Subtopic: ETS:1 | ETS |
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Level 1: 80%+
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In the electron transport chain, the movement of protons across the inner mitochondrial membrane creates a proton gradient. Which enzyme utilizes this proton gradient to synthesize ATP?
| 1. | ATP synthase | 2. | Cytochrome c oxidase |
| 3. | NADH dehydrogenase | 4. | Succinate dehydrogenase |
Subtopic: ETS |
90%
Level 1: 80%+
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Match List-I with List-II
| List-I | List-II | ||
| (a) | ETS complex-I | (i) | Cyt be1 |
| (b) | ETS complex-II | (ii) | Cyt a,a3 and 2 copper centres |
| (c) | ETS complex III | (iii) | NADH dehydrogenase |
| (d) | ETS complex-IV | (iv) | Ubiquinone and FADH dehydrogenase |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (i) | (iv) | (iii) |
| 2. | (iv) | (iii) | (ii) | (i) |
| 3. | (iii) | (ii) | (i) | (iv) |
| 4. | (iii) | (iv) | (i) | (ii) |
Subtopic: ETS |
89%
Level 1: 80%+
NEET - 2022
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