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Q. No.Consider the given two statements:
| Assertion (A): | During oxidation within a cell, all the energy contained in respiratory substrates is released free into the cell, in a single step. |
| Reason (R): | The energy released by oxidation in respiration is not (or rather cannot be) used directly but is used to synthesise ATP. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Respiratory Quotient | THE RESPIRATORY BALANCE SHEET |
92%
From NCERT
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How many ATP molecules are directly synthesised in the glycolytic pathway from one glucose molecule?
1. 2
2. 4
3. 10
4. 30
1. 2
2. 4
3. 10
4. 30
Subtopic: Glycolysis Regulation | Respiratory Quotient | THE RESPIRATORY BALANCE SHEET |
63%
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 |
80%
From NCERT
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Q. No.
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