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Q. No.
Regeneration of NAD+ is accomplished by:
I: Ethanol fermentation
II: Lactate fermentation
 
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
Subtopic:  Fermentation |
 85%
Level 1: 80%+
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Yeasts carry out ethanol fermentation but poison themselves to death when the concentration of alcohol reaches about:
1. 5 per cent. 2. 13 per cent.
3. 20 per cent. 4. 45 per cent.
Subtopic:  Fermentation |
 94%
Level 1: 80%+
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Assertion (A): The processes of lactic acid and alcohol fermentation are less efficient in harnessing the energy stored in glucose compared to aerobic respiration.
Reason (R): In these fermentation pathways, the incomplete breakdown of glucose occurs under anaerobic conditions, where oxygen is not available.
 
1. Both (A) and (R) are True and (R) correctly explains (A).
2. Both (A) and (R) are True and (R) does not correctly explain (A).
3. (A) is True; (R) is False
4. Both (A) and (R) are False
Subtopic:  Fermentation |
 84%
Level 1: 80%+
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In the mitochondrial matrix, pyruvate is broken down to release:
I: Three molecules of CO2
II: Eight molecules of NADH + H+
III: Two molecules of FADH2 
IV: One molecule of ATP 

1. Only I and II
2. Only III and IV
3. Only I, II and IV
4. Only I and IV
Subtopic:  Fermentation | Aerobic Respiration | Oxidative Phosphorylation |
 57%
Level 3: 35%-60%
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