KCET · BIOLOGY · STD 12 - 8. Microbes in Human Welfare
The puffed-up appearance of dough is due to fermentation by bacteria. Identify the gas liberated during the process.
- A Methane
- B Carbon dioxide
- C Hydrogen sulphide
- D Ammonia
Answer & Solution
Correct Answer
(B) Carbon dioxide
Step-by-step Solution
Detailed explanation
(B) Carbon dioxide,
The dough becomes puffy due to the presence of carbon dioxide liberated by bacteria during fermentation. In this process, the bacteria convert carbohydrate into ethanol and carbon dioxide gas.
The dough becomes puffy due to the presence of carbon dioxide liberated by bacteria during fermentation. In this process, the bacteria convert carbohydrate into ethanol and carbon dioxide gas.
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