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Q. No.In anaerobic organisms, the only process in respiration is:
1. EMP pathway
2. Hatch and Slack pathway
3. Tricarboxylic acid cycle
4. Calvin Benson cycle
Subtopic: Glycolysis |
90%
Level 1: 80%+
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Sucrose is converted into glucose and fructose by the enzyme:
1. Lactase
2. Zymase
3. Diastase
4. Invertase
1. Lactase
2. Zymase
3. Diastase
4. Invertase
Subtopic: Glycolysis |
95%
Level 1: 80%+
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The step in the glycolytic pathway where NADH + H+ is formed from NAD+ is when:
| 1. | fructose 1, 6-bisphosphate is split into dihydroxyacetone phosphate and 3-phosphoglyceraldehyde (PGAL) |
| 2. | 3-phosphoglyceraldehyde (PGAL) is converted to 1, 3-bisphosphoglycerate (BPGA) |
| 3. | BPGA is converted to 3-phosphoglyceric acid (PGA) |
| 4. | PEP is converted to pyruvic acid |
Subtopic: Glycolysis |
81%
Level 1: 80%+
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The reaction 2 in the given figure is catalysed by the enzyme:
1. Pyruvate decarboxylase
2. Pyruvate kinase
3. Pyruvate dehydrogenase
4. Pyruvate synthetase
1. Pyruvate decarboxylase2. Pyruvate kinase
3. Pyruvate dehydrogenase
4. Pyruvate synthetase
Subtopic: Fermentation |
72%
Level 2: 60%+
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During fermentation Yeasts poison themselves to death when the concentration of alcohol reaches about:
1. 5 percent
2. 13 per cent
3. 22 per cent
4. 44 per cent
1. 5 percent
2. 13 per cent
3. 22 per cent
4. 44 per cent
Subtopic: Fermentation |
96%
Level 1: 80%+
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In aerobic respiration, passing on of the electrons removed as part of the hydrogen atoms to molecular O2 with simultaneous synthesis of ATP, is associated with:
1. Outer mitochondrial membrane
2. Inner mitochondrial membrane
3. Mitochondrial matrix
4. Cytosol
1. Outer mitochondrial membrane
2. Inner mitochondrial membrane
3. Mitochondrial matrix
4. Cytosol
Subtopic: Aerobic Respiration |
83%
Level 1: 80%+
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Pyruvate, which is formed by the glycolytic catabolism of carbohydrates in the cytosol:
| 1. | undergoes oxidative decarboxylation in cytosol itself by a complex set of reactions catalysed by pyruvic kinase. |
| 2. | undergoes reduction in cytosol itself by a complex set of reactions catalysed by pyruvic dehydrogenase. |
| 3. | undergoes oxidative decarboxylation in mitochondrial matrix by a complex set of reactions catalysed by pyruvic dehydrogenase. |
| 4. | undergoes oxidative phosphorylation in mitochondrial matrix by a complex set of reactions catalysed by pyruvic decarboxylase. |
Subtopic: Aerobic Respiration |
76%
Level 2: 60%+
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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%
Level 1: 80%+
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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%
Level 1: 80%+
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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 |
Subtopic: ETS |
90%
Level 1: 80%+
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