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Q. No.Alcohol fermentation by yeast produces:
1. \(\text{CO}_2\) and ethanol
2. Lactic acid and ATP
3. Ethanol, \(\text{CO}_2\), and NAD+
4. Pyruvate and NADH
1. \(\text{CO}_2\) and ethanol
2. Lactic acid and ATP
3. Ethanol, \(\text{CO}_2\), and NAD+
4. Pyruvate and NADH
Subtopic: Â Fermentation |
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When oxygen is not available to a cell, NADH formed during glycolysis:
| 1. | does not undergo any change as there is no need for the cell to regenerate NAD+ |
| 2. | passes electrons to the electron transport system |
| 3. | passes hydrogen atoms to pyruvic acid |
| 4. | passes electrons and hydrogen atoms to acetyl coA |
Subtopic: Â Fermentation |
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Consider the given two statements:
| Assertion (A): | Fermentation is a type of anaerobic respiration where glucose is partially oxidized to produce energy. |
| Reason (R): | Fermentation results in the production of ethanol or lactic acid without the use of oxygen. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True, (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Â Fermentation |
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In lactic acid and alcohol fermentation:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | less than 7 percent of energy in glucose is released. |
| II: | all energy released is trapped as high energy bonds of ATP. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Â Fermentation |
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Level 3: 35%-60%
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