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Q. No.
Given below are two statements:
Assertion (A):
RQ of carbohydrates on its complete oxidation is equal to 1.
Reason (R):
During the complete oxidation of carbohydrates, equal amounts of CO2 and O2 are evolved and consumed, respectively.
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.
Both (A) and (R) are false.
Subtopic: Respiratory Quotient |
91%
From NCERT
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Given below are two statements:
| Assertion (A): | Oxidation of one molecule of FADH2 gives rise to three molecules of ATP. |
| Reason (R): | The continued oxidation of acetyl CoA via the TCA cycle does not require the continued replenishment of oxaloacetic acid. |
| 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. | Both (A) and (R) are false. |
Subtopic: ETS |
85%
From NCERT
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Given below are two statements:
| Assertion (A): | Fermentation takes place under anaerobic conditions in prokaryotes only. |
| Reason (R): | In oxidative phosphorylation, water is the ultimate acceptor of electrons. |
| 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. | Both (A) and (R) are False. |
Subtopic: Fermentation |
76%
From NCERT
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Given below are two statements:
| Assertion (A): | Cytochrome c is a small protein attached to the inner surface of the inner membrane of mitochondria. |
| Reason (R): | Electrons from NADH produced in the mitochondrial matrix during the citric acid cycle are oxidized by cytochrome c oxidase. |
| 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. | Both (A) and (R) are false. |
Subtopic: ETS |
66%
From NCERT
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How many NADH molecules will be synthesized during glycolysis, if 25 molecules of sucrose are utilized?
1. 50
2. 100
3. 25
4. 200
1. 50
2. 100
3. 25
4. 200
Subtopic: Glycolysis |
54%
From NCERT
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How many ATP molecules are utilized to form 10 molecules of fructose-6-phosphate in glycolysis? (Glucose is considered to be the respiratory substrate.)
1. 10
2. 5
3. 20
4. 50
1. 10
2. 5
3. 20
4. 50
Subtopic: Glycolysis |
From NCERT
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During fermentation, how much energy present in glucose is released?
1. Less than 7%
2. 15-18%
3. 10%
4. 74%
1. Less than 7%
2. 15-18%
3. 10%
4. 74%
Subtopic: Fermentation |
93%
From NCERT
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At which of the following alcohol concentrations do yeasts poison themselves to death during fermentation?
1. 5-7% of ethanol
2. 2-5% of methanol
3. Over 15% of methanol
4. About 13% of ethanol
1. 5-7% of ethanol
2. 2-5% of methanol
3. Over 15% of methanol
4. About 13% of ethanol
Subtopic: Fermentation |
87%
From NCERT
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How many times oxidative decarboxylation takes place during the complete oxidation of one molecule of pyruvate in aerobic respiration?
1. 1
2. 2
3. 3
4. 4
1. 1
2. 2
3. 3
4. 4
Subtopic: Kreb's Cycle |
From NCERT
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How many ATPs are produced by substrate-level phosphorylation in aerobic and anaerobic respiration, respectively, if one molecule of glucose is used?
1. 6, 4
2. 4, 6
3. 4, 4
4. 6, 6
1. 6, 4
2. 4, 6
3. 4, 4
4. 6, 6
Subtopic: Glycolysis | Aerobic Respiration |
65%
From NCERT
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