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Q. No.In the TCA cycle, a molecule of GTP is synthesised:
1. During the first oxidative decarboxylation reaction
2. During the second oxidative decarboxylation reaction
3. During the condensation of acetyl group with oxaloacetic acid (OAA) and water to yield citric acid
4. During the conversion of succinyl-CoA to succinic acid
Subtopic: Kreb's Cycle |
90%
From NCERT
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In the mitochondrial ETS, ubiquinone receives reducing equivalents from:
I: Complex I
II: Complex II
III: Complex III
IV: Complex IV
1. Only I and II
2. Only III and IV
3. Only I, II and III
4. Only II, III and IV
I: Complex I
II: Complex II
III: Complex III
IV: Complex IV
1. Only I and II
2. Only III and IV
3. Only I, II and III
4. Only II, III and IV
Subtopic: ETS |
81%
From NCERT
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Which of the following is the complex III of the mitochondrial ETS?
1. NADH dehydrogenase
2. Succinic dehydrogenase
3. Cytochrome bc1 complex
4. Cytochrome c oxidase
1. NADH dehydrogenase
2. Succinic dehydrogenase
3. Cytochrome bc1 complex
4. Cytochrome c oxidase
Subtopic: ETS |
90%
From NCERT
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Cytochrome c in the mitochondrial ETS is located:
| 1. | within the inner mitochondrial membrane |
| 2. | on the outer surface of the inner mitochondrial membrane |
| 3. | on the inner surface of the inner mitochondrial membrane |
| 4. | in the mitochondrial matrix |
Subtopic: ETS |
80%
From NCERT
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The reduced ubiquinone (ubiquinol) in the mitochondrial ETS is oxidised with the transfer of electrons to:
1. cytochrome c via succinic dehydrogenase
2. cytochrome c via cytochrome bc1 complex
3. cytochrome bc1 via cytochrome aa3
4. cytochrome bc1 via cytochrome b6f
1. cytochrome c via succinic dehydrogenase
2. cytochrome c via cytochrome bc1 complex
3. cytochrome bc1 via cytochrome aa3
4. cytochrome bc1 via cytochrome b6f
Subtopic: ETS |
76%
From NCERT
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In the Complex I of mitochondrial ETS, electrons from NADH are first passed on to:
1. Fe-S
2. FMN
3. FAD
4. Cua
1. Fe-S
2. FMN
3. FAD
4. Cua
Subtopic: ETS |
74%
From NCERT
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Oxidation of one molecule of NADH gives rise to ____ molecules of ATP, while that of one molecule of FADH2 produces _____ molecules of ATP.
1. 3 and 2 respectively
2. 2 and 3 respectively
3. 1 and 2 respectively
4. 2 and 1 respectively
1. 3 and 2 respectively
2. 2 and 3 respectively
3. 1 and 2 respectively
4. 2 and 1 respectively
Subtopic: ETS |
94%
From NCERT
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Regarding ATP synthase (complex V):
1. I and II are correct
2. III and IV are correct
3. I and III are correct
4. II and IV are correct
| I: | The F1 headpiece is a peripheral membrane protein complex and contains the site for synthesis of ATP from ADP and inorganic phosphate. |
| II: | F0 is an integral membrane protein complex that forms the channel through which protons cross the inner membrane. |
| III: | The F0 headpiece is a peripheral membrane protein complex and contains the site for synthesis of ATP from ADP and inorganic phosphate. |
| IV: | F1 is an integral membrane protein complex that forms the channel through which protons cross the inner membrane. |
2. III and IV are correct
3. I and III are correct
4. II and IV are correct
Subtopic: ETS |
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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