Question:
In the manufacture of ethanol from sugar the enzymes are:
In the manufacture of ethanol from sugar the enzymes are:
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Invertase breaks sucrose into glucose and fructose, which zymase ferments into ethanol.
Updated On: Apr 22, 2026
- Diastase and zymase
- Maltase and zymase
- Diastase and invertase
- Invertase and zymase
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the enzymes involved in ethanol production.
Ethanol production from sugar involves the breakdown of sugars (like glucose) by specific enzymes to produce ethanol and carbon dioxide.
Step 2: Identifying the enzymes.
- (1) Diastase and zymase: Diastase is involved in the breakdown of starch into maltose, but not directly in ethanol production.
- (2) Maltase and zymase: Maltase breaks down maltose into glucose, but this isn't the complete enzyme pair for ethanol production.
- (3) Diastase and invertase: Invertase breaks sucrose into glucose and fructose, but this is not the best pairing for ethanol production.
- (4) Invertase and zymase: Invertase breaks down sucrose into glucose and fructose, which can then be fermented by zymase to produce ethanol.
Step 3: Conclusion.
The correct answer is (4) Invertase and zymase.
Ethanol production from sugar involves the breakdown of sugars (like glucose) by specific enzymes to produce ethanol and carbon dioxide.
Step 2: Identifying the enzymes.
- (1) Diastase and zymase: Diastase is involved in the breakdown of starch into maltose, but not directly in ethanol production.
- (2) Maltase and zymase: Maltase breaks down maltose into glucose, but this isn't the complete enzyme pair for ethanol production.
- (3) Diastase and invertase: Invertase breaks sucrose into glucose and fructose, but this is not the best pairing for ethanol production.
- (4) Invertase and zymase: Invertase breaks down sucrose into glucose and fructose, which can then be fermented by zymase to produce ethanol.
Step 3: Conclusion.
The correct answer is (4) Invertase and zymase.
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