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Q. No.In the tricarboxylic acid cycle, what are the respective numbers for – decarboxylation steps, substrate level phosphorylation and points at which FADH2 is produced [calculate for oxidation of one molecule of pyruvic acid]?
1.
3, 2 and 1
2.
2, 1 and 1
3.
3, 1 and 2
4.
2, 2 and 2
Subtopic: Kreb's Cycle |
74%
Level 2: 60%+
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During glycolysis in plant cells, the enzyme hexokinase catalyzes the phosphorylation of:
| I: | Glucose |
| II: | Fructose |
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
Subtopic: Glycolysis |
50%
Level 3: 35%-60%
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The number of carbon atoms in all the following molecules is 4 except in:
| 1. | α ketoglutaric acid | 2. | Oxaloacetic acid |
| 3. | Succinic acid | 4. | Malic acid |
Subtopic: Kreb's Cycle |
84%
Level 1: 80%+
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An energy yielding step in glycolysis is:
| 1. | phosphorylation of glucose |
| 2. | splitting of fructose 1,6-biphosphate |
| 3. | phosphorylation of fructose-6-phosphate |
| 4. | conversion of BPGA to 3-phosphoglyceric acid |
Subtopic: Glycolysis |
85%
Level 1: 80%+
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In the mitochondrial electron transport system, ubiquinone receives reducing equivalents via:
1. Both Complex I and Complex II
2. Complex III
3. Complex IV
4. Complex V
1. Both Complex I and Complex II
2. Complex III
3. Complex IV
4. Complex V
Subtopic: ETS |
85%
Level 1: 80%+
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The number of carbon atoms are 3 in all of the following molecules except:
| 1. | Dihydroxyacetone phosphate |
| 2. | Glyceraldehyde 3-phosphate |
| 3. | Acetyl CoA |
| 4. | Pyruvic acid |
Subtopic: Glycolysis | Kreb's Cycle |
81%
Level 1: 80%+
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Fermentation is not a waste but it serves an important purpose which is:
1. Regeneration of NAD +
2. Formation of large number of ATP
3. Evolution of oxygen
4. Complete oxidation of pyruvic acid
1. Regeneration of NAD +
2. Formation of large number of ATP
3. Evolution of oxygen
4. Complete oxidation of pyruvic acid
Subtopic: Fermentation |
85%
Level 1: 80%+
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What amount of energy is released from glucose during lactic acid fermentation?
| 1. | Less than 7% | 2. | Approximately 15% |
| 3. | More than 18% | 4. | About 10% |
Subtopic: Fermentation |
90%
Level 1: 80%+
NEET - 2022
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What is the net gain of ATP when each molecule of glucose is converted to two molecules of pyruvic acid?
| 1. | Eight | 2. | Four |
| 3. | Six | 4. | Two |
Subtopic: Glycolysis |
69%
Level 2: 60%+
NEET - 2022
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Match List-I with List-II
| List-I | List-II | ||
| (a) | ETS complex-I | (i) | Cyt bc1 |
| (b) | ETS complex-II | (ii) | Cyt a,a3 and 2 copper centres |
| (c) | ETS complex-III | (iii) | NADH dehydrogenase |
| (d) | ETS complex-IV | (iv) | Ubiquinone and FADH2 dehydrogenase |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (i) | (iv) | (iii) |
| 2. | (iv) | (iii) | (ii) | (i) |
| 3. | (iii) | (ii) | (i) | (iv) |
| 4. | (iii) | (iv) | (i) | (ii) |
Subtopic: ETS |
86%
Level 1: 80%+
NEET - 2022
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