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Q. No.What purpose does fermentation serve?
1. Release of more than fifty per cent of the energy in glucose.
2. Traps energy released by incomplete oxidation of glucose as high energy bonds of ATP.
3. Regeneration of NAD+.
4. Production of highly useful acid or alcohol.
Subtopic: Fermentation |
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How many of the given statements regarding Mitochondrial Electron Transport System (ETS) and Oxidative Phosphorylation are correct?
I: Ubiquinone receives reducing equivalents via FADH2 (complex II) and NADH dehydrogenase (complex I).
II: The reduced ubiquinone (ubiquinol) is then oxidised with the transfer of electrons to cytochrome c via cytochrome bc1 complex (complex III).
III: Cytochrome c is a small protein attached to the inner surface of the outer membrane.
IV: Complex IV contains cytochromes a and a3, and two copper centres.
V: Oxygen acts as the final hydrogen acceptor.
1. 2
2. 3
3. 4
4. 5
I: Ubiquinone receives reducing equivalents via FADH2 (complex II) and NADH dehydrogenase (complex I).
II: The reduced ubiquinone (ubiquinol) is then oxidised with the transfer of electrons to cytochrome c via cytochrome bc1 complex (complex III).
III: Cytochrome c is a small protein attached to the inner surface of the outer membrane.
IV: Complex IV contains cytochromes a and a3, and two copper centres.
V: Oxygen acts as the final hydrogen acceptor.
1. 2
2. 3
3. 4
4. 5
Subtopic: ETS |
64%
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Regarding comparison of fermentation and aerobic respiration, the incorrect statements will be:
1. Only I and II
2. Only III
3. Only II and III
4. I, II and III
| Fermentation | Aerobic respiration | |
| I | Partial breakdown of glucose | Complete breakdown of glucose |
| II | A net gain of only two molecules of ATP for each molecule of glucose degraded |
Many more molecules of ATP are generated |
| III | NADH is oxidised to NAD+ vigorously | NADH is oxidised to NAD+ rather slowly |
1. Only I and II
2. Only III
3. Only II and III
4. I, II and III
Subtopic: Fermentation | Aerobic Respiration |
65%
From NCERT
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Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R):
In the light of the above statements, choose the correct answer from the options given below :
| Assertion (A): | ATP is used at two steps in glycolysis . |
| Reason (R): | First ATP is used in converting glucose into glocose-6-phosphate and second ATP is used in conversion of fructose-6-phosphate into fructose-1-6-diphosphate. |
In the light of the above statements, choose the correct answer from the options given below :
| 1. | (A) is False but (R) is True. |
| 2. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 3. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 4. | (A) is True but (R) is False. |
Subtopic: Glycolysis |
80%
From NCERT
NEET - 2023
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Match List I with List II
Choose the correct answer from the options given below:
| List I | List II | ||
| A. | Oxidative decarboxylation | I. | Citrate synthase |
| B. | Glycolysis | II. | Pyruvate dehydrogenase |
| C. | Oxidative phosphorylation | III. | Electron transport system |
| D. | Tricarboxylic acid cycle | IV. | EMP pathway |
| Options: | A | B | C | D |
| 1. | II | IV | III | I |
| 2. | III | IV | II | I |
| 3. | II | IV | I | III |
| 4. | III | I | II | IV |
Subtopic: Aerobic Respiration | Kreb's Cycle |
71%
From NCERT
NEET - 2023
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Subtopic: Kreb's Cycle |
71%
From NCERT
NEET - 2023
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Fatty acids are connected with the respiratory pathway through:
1. Acetyl CoA
2. α - Ketoglutaric acid
3. Dihydroxy acetone phosphate
4. Pyruvic acid
1. Acetyl CoA
2. α - Ketoglutaric acid
3. Dihydroxy acetone phosphate
4. Pyruvic acid
Subtopic: Amphibolic Nature of Respiration |
80%
From NCERT
NEET - 2023
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| Assertion (A): | ATP acts as the energy currency of the cell. |
| Reason (R): | Energy trapped in ATP is utilized 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. | Both (A) and (R) are false. |
Subtopic: Respiratory Quotient |
90%
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Given below are two statements:
| Assertion (A): | Plants have stomata and lenticels that ensure the availability of O2. |
| Reason (R): | Plants require CO2 for respiration and they give out O2. |
| 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: Introduction |
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Given below are two statements:
| Assertion (A): | When a plant cell is photosynthesizing, there is no shortage of O2. |
| Reason (R): | O2 is released within the cell, during photosynthesis. |
| 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: Introduction |
79%
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