Q. No.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 |
97%
Level 1: 80%+
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In lactate fermentation, Pyruvate is reduced to lactate by
| 1. | Lactate carboxylase |
| 2. | Lactate dehydrogenase |
| 3. | Lactate oxygenase |
| 4. | Lactate reductase |
Subtopic: Fermentation |
96%
Level 1: 80%+
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Which of the following is true with respect to Fermentation?
| 1. | Only partial breakdown of glucose |
| 2. | Net gain of only two molecules of ATP for each molecule of Glucose |
| 3. | NADH is oxidized to NAD+ rather slowly in fermentation |
| 4. | All of these |
Subtopic: Fermentation |
94%
Level 1: 80%+
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Consider the given two statements:
| Statement I: | Fermentation is an anaerobic process. |
| Statement II: | Fermentation produces a higher amount of ATP compared to aerobic respiration. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Fermentation |
93%
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The fermentation product of yeast are
| 1. | Methyl alcohol and ethyl alcohol |
| 2. | Methyl alcohol and carbon dioxide |
| 3. | Ethyl alcohol and carbon dioxide |
| 4. | Pyruvate and acetaldehyde |
Subtopic: Fermentation |
91%
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During anaerobic respiration in muscle cells, pyruvate is converted to:
1. Ethanol
2. Acetyl-CoA
3. Lactic acid
4. Glucose
1. Ethanol
2. Acetyl-CoA
3. Lactic acid
4. Glucose
Subtopic: Fermentation |
92%
Level 1: 80%+
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When deprived of oxygen, yeast cells obtain energy by fermentation, producing carbon dioxide, ATP, and
| 1. | acetyl CoA | 2. | ethyl alcohol |
| 3. | lactate | 4. | pyruvate |
Subtopic: Fermentation |
91%
Level 1: 80%+
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During strenuous muscle activity, the pyruvate in muscle cells may accept hydrogen from NADH to become ______________ .
1. acetyl CoA
2. ethyl alcohol
3. lactate
4. pyruvate
1. acetyl CoA
2. ethyl alcohol
3. lactate
4. pyruvate
Subtopic: Fermentation |
91%
Level 1: 80%+
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In alcohol fermentation, ____ of energy in glycose in released and not all of it is trapped as high energy bonds ATP
1. Less than 1%
2. More than 10%
3. Less than 7%
4. More than 40%
Subtopic: Fermentation |
90%
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Subtopic: Fermentation |
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