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Q. No.During the conversion of pyruvic acid to acetyl CoA in mitochondrial matrix:
I:
pyruvic acid is reduced.
II:
NAD+ is oxidized.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Kreb's Cycle |
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Level 3: 35%-60%
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In mitochondrial electron transport chain:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | Complex I is NADH dehydrogenase |
| II: | Complex II is succinate dehydrogenase |
| III: | Complex III is cytochrome b6f complex. |
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: ETS |
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Level 2: 60%+
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That glycolysis is an ancient metabolic process is evidenced in the fact that:
1. it yields large number of ATP molecules
2. it does not directly use oxygen
3. it occurs virtually in all cells
4. it takes place in the cytoplasm
1. it yields large number of ATP molecules
2. it does not directly use oxygen
3. it occurs virtually in all cells
4. it takes place in the cytoplasm
Subtopic: Glycolysis |
Level 3: 35%-60%
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In lactic acid and alcohol fermentation:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | less than 7 percent of energy in glucose is released. |
| II: | all energy released is trapped as high energy bonds of ATP. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Fermentation |
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Consider the given two statements:
| Assertion (A): | Fermentation is a type of anaerobic respiration where glucose is partially oxidized to produce energy. |
| Reason (R): | Fermentation results in the production of ethanol or lactic acid without the use of oxygen. |
| 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, (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Fermentation |
Level 3: 35%-60%
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Consider the given two statements:
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
| Statement I: | Both photosynthesis and aerobic cellular respiration occur in plant cells but only aerobic cellular respiration occurs in animal cells. |
| Statement II: | Both photosynthesis and aerobic cellular respiration occur during the daylight hours, but only aerobic cellular respiration occurs at night. |
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: Introduction |
Level 3: 35%-60%
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In ETS in mitochondria, oxygen acts as a:
1. Only A
2. Only B
3. Both A and B
4. Neither A nor B
| A. | Final acceptor of electrons |
| B. | Final acceptor of protons |
2. Only B
3. Both A and B
4. Neither A nor B
Subtopic: ETS |
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Alcohol fermentation by yeast produces:
1. \(\text{CO}_2\) and ethanol
2. Lactic acid and ATP
3. Ethanol, \(\text{CO}_2\), and NAD+
4. Pyruvate and NADH
1. \(\text{CO}_2\) and ethanol
2. Lactic acid and ATP
3. Ethanol, \(\text{CO}_2\), and NAD+
4. Pyruvate and NADH
Subtopic: Fermentation |
56%
Level 3: 35%-60%
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The number of correct statement(s) from the given statements regarding possible respiratory substrates is/are:
1. 1
2. 2
3. 3
4. 4
| I: | Glucose is the favoured substrate for respiration. |
| II: | All carbohydrates are usually first converted into glucose before they are used for respiration. |
| III: | Glycerol would enter the pathway after being converted to Acetyl CoA. |
| IV: | Proteins and amino acids cannot be used as respiratory substrates. |
2. 2
3. 3
4. 4
Subtopic: Amphibolic Nature of Respiration |
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In a eukaryotic plant cell, within a mitochondrion, the proton gradient develops across the:
1. Inter-membrane space
2. Inner membrane
3. Outer membrane
4. Matrix
1. Inter-membrane space
2. Inner membrane
3. Outer membrane
4. Matrix
Subtopic: ETS:2 | ETS:1 | ETS |
Level 3: 35%-60%
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