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Q. No.Which of the following is a common energy flow sequence in aerobic respiration, starting with the energy stored in glucose?
1. glucose → NADH → pyruvate → ATP
2. glucose → ATP → NADH → electron transport chain
3. glucose → NADH → electron transport chain → ATP
4. glucose → oxygen → NADH → water
1. glucose → NADH → pyruvate → ATP
2. glucose → ATP → NADH → electron transport chain
3. glucose → NADH → electron transport chain → ATP
4. glucose → oxygen → NADH → water
Subtopic: THE RESPIRATORY BALANCE SHEET |
84%
From NCERT
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A net profit of only 2 ATPs can be produced anaerobically from the _______________ of one molecule of glucose, compared with a maximum of 38 ATPs produced in _________________.
1. fermentation; anaerobic respiration
2. aerobic respiration; fermentation
3. aerobic respiration; anaerobic respiration
4. fermentation; aerobic respiration
1. fermentation; anaerobic respiration
2. aerobic respiration; fermentation
3. aerobic respiration; anaerobic respiration
4. fermentation; aerobic respiration
Subtopic: THE RESPIRATORY BALANCE SHEET |
93%
From NCERT
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Which of the following yield maximum energy :
1. Glycolysis in a sprinter
2. Aerobic respiration in germinating seeds
3. Fermentation by yeast
4. Anaerobic respiration
Subtopic: THE RESPIRATORY BALANCE SHEET |
90%
From NCERT
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Consider the given two statements:
| Assertion (A): | It is possible to make calculations of the net gain of ATP for every glucose molecule oxidised; but in reality this can remain only a theoretical exercise. |
| Reason (R): | These calculations can be made only on certain assumptions that are not really valid in a living system. |
| 1. | Both (A) and (R) are True and (R) correctly explains the (A) |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of the (A) |
| 3. | (A) is True but (R) is False |
| 4. | (A) is False but (R) is True |
Subtopic: Aerobic Respiration | THE RESPIRATORY BALANCE SHEET |
88%
From NCERT
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There can be a net gain of ____ ATP molecules during aerobic respiration of one molecule of glucose
[as per NCERT textbook]:
1. 30
2. 36
3. 38
4. 40
[as per NCERT textbook]:
1. 30
2. 36
3. 38
4. 40
Subtopic: THE RESPIRATORY BALANCE SHEET |
86%
From NCERT
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Correct comparisons between fermentation and aerobic respiration will include:
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
| I: | Fermentation accounts for only a partial breakdown of glucose, whereas in aerobic respiration, it is completely degraded to CO2 and H2O. |
| II: | In fermentation, there is a net gain of only two molecules of ATP for each molecule of glucose degraded to pyruvic acid, whereas many more molecules of ATP are generated under aerobic conditions. |
| III: | NADH is oxidised to NAD+ rather slowly in fermentation, however, the reaction is very vigorous in case of aerobic respiration. |
2. Only I and III
3. Only II and III
4. I, II and III
Subtopic: THE RESPIRATORY BALANCE SHEET |
78%
From NCERT
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Glycerol enters the respiratory catabolic pathway after being converted to:
1. PGAL
2. Fructose
3. Pyruvate
4. Acetyl CoA
1. PGAL
2. Fructose
3. Pyruvate
4. Acetyl CoA
Subtopic: THE RESPIRATORY BALANCE SHEET |
70%
From NCERT
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Consider the given two statements:
| Statement I: | Fatty acids would be broken down to acetyl CoA before entering the respiratory pathway when it is used as a substrate. |
| Statement II: | When the organism needs to synthesise fatty acids, acetyl CoA would be withdrawn from the respiratory pathway for it. |
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is incorrect; Statement II is correct |
| 3. | Statement I is incorrect; Statement II is incorrect |
| 4. | Statement I is correct; Statement II is correct |
Subtopic: Amphibolic Nature of Respiration | THE RESPIRATORY BALANCE SHEET |
85%
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Consider the given two statements:
| Assertion (A): | It is better to consider the respiratory pathway as an amphibolic pathway rather than only as a catabolic one. |
| Reason (R): | Breaking down processes within the living organism is catabolism, and synthesis is anabolism. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A) |
| 2. | Both (A) and (R) are True but (R) does not correctly explains (A) |
| 3. | (A) is True but (R) is False |
| 4. | (A) is False but (R) is True |
Subtopic: THE RESPIRATORY BALANCE SHEET |
58%
From NCERT
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