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Q. No.Consider the given two statements:
| Assertion (A): | ATP acts as the energy currency of the cell. |
| Reason (R): | The energy released by oxidation in respiration is used directly in various energy-requiring processes of the organisms. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Respiratory Quotient |
From NCERT
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Consider the given two statements:
| Assertion (A): | All living organisms retain the enzymatic machinery to partially oxidise glucose without the help of oxygen. |
| Reason (R): | The first cells on this planet lived in an atmosphere that lacked oxygen. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Introduction |
57%
From NCERT
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Consider the given two statements:
| Assertion (A): | It is important that in muscles during exercise, when oxygen is inadequate for cellular respiration pyruvic acid is reduced to lactic acid. |
| Reason (R): | NAD+ is regenerated in this step. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Fermentation |
From NCERT
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Consider the given two statements:
| Assertion (A): | ATP production in mitochondria is oxidative phosphorylation. |
| Reason (R): | It is the light energy that is utilised for the production of proton gradient required for phosphorylation in mitochondria. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Oxidative Phosphorylation |
65%
From NCERT
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The pathway through which glucose is degraded to pyruvate is called
1. aerobic respiration
2. the citric acid cycle
3. the oxidation of pyruvate
4. glycolysis
1. aerobic respiration
2. the citric acid cycle
3. the oxidation of pyruvate
4. glycolysis
Subtopic: Glycolysis |
94%
From NCERT
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The reactions of ___________ take place within the cytosol of eukaryotic cells.
1. glycolysis
2. oxidation of pyruvate
3. the citric acid cycle
4. chemiosmosis
1. glycolysis
2. oxidation of pyruvate
3. the citric acid cycle
4. chemiosmosis
Subtopic: Glycolysis |
91%
From NCERT
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Before pyruvate enters the citric acid cycle, it is decarboxylated, oxidized, and combined with coenzyme A, forming acetyl CoA, carbon dioxide, and one molecule of
| 1. | NADH | 2. | FADH2 |
| 3. | ATP | 4. | ADP |
Subtopic: Aerobic Respiration | Kreb's Cycle |
86%
From NCERT
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In the first step of the citric acid cycle, acetyl CoA reacts with oxaloacetate to form
1. pyruvate
2. citrate
3. NADH
4. ATP
1. pyruvate
2. citrate
3. NADH
4. ATP
Subtopic: Kreb's Cycle |
94%
From NCERT
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Which of the following is a major source of electrons for the electron transport chain?
1. H2O
2. ATP
3. NADH
4. ATP synthase
1. H2O
2. ATP
3. NADH
4. ATP synthase
Subtopic: ETS |
63%
From NCERT
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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: Oxidative Phosphorylation | ETS |
85%
From NCERT
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