Q. No.How many ATP molecules are produced by aerobic oxidation of one molecule of glucose?
1.
2
2.
4
3.
38
4.
34
Which of the following yield maximum energy :
1. Glycolysis in a sprinter
2. Aerobic respiration in germinating seeds
3. Fermentation by yeast
4. Anaerobic respiration
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Which of these statements is incorrect?
| 1. | Enzymes of TCA cycle are present in mitochondrial matrix. |
| 2. | Glycolysis occurs in cytosol. |
| 3. | Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms. |
| 4. | Oxidative phosphorylation takes place in outer mitochondrial membrane. |
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In which one of the following do the two names refer to one and the same thing : -
| 1. | Krebs cycle and Calvin cycle |
| 2. | Tricarboxylic acid cycle and citric acid cycle |
| 3. | Citric acid cycle and Calvin cycle |
| 4. | Tricarboxylic acid cycle and urea cycle |
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Glycolysis is :
| 1. | Oxidation of glucose to glutamate |
| 2. | Conversion of pyruvate to citrate |
| 3. | Oxidation of glucose to pyruvate |
| 4. | Conversion of glucose to haem |
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Pyruvate dehydrogenase activity during aerobic respiration requires:
| 1. | Calcium | 2. | Iron |
| 3. | Cobalt | 4. | Magnesium |
The enzyme lactate dehydrogenase catalyses:
| 1. | the oxidation of pyruvate to lactate to regenerate NAD+. |
| 2. | the reduction of pyruvate to lactate to regenerate NAD+. |
| 3. | the reduction of pyruvate to lactate to regenerate NADH. |
| 4. | the oxidation of pyruvate to lactate to regenerate NADH. |
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In the citric acid cycle:
| 1. | oxygen is used to oxidise the acetyl group carbons of acetyl-CoA in the citric acid cycle. |
| 2. | three molecules of NADH and one molecule of FADH2 are produced in one turn. |
| 3. | oxygen is not used, so the cycle can occur in anaerobic conditions. |
| 4. | water is formed during the complete oxidation of glucose. |
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For aerobic cellular respiration, identify the correctly matched row:
|
Phase |
Cost,per glucose |
Gain,per glucose |
|
|
1. |
Glycolysis |
2 ATP |
4 ATP, 1 NADH |
|
2. |
Oxidation of pyruvic acid |
4 ATP |
2 NADH |
|
3. |
Krebs cycle |
2 ATP |
2 ATP, 6 NADH, 1 FADH2 |
|
4. |
Electron transport |
2 ATP |
34 ATP |
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