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Biology · MICROBES IN HUMAN WELFARE

हिन्दी

The puffed-up appearance of dough used for making foods such as dosa and idli is primarily due to the metabolic activity and production of which of the following gases?

  1. Oxygen (\( \text{O}_2 \))
  2. Hydrogen sulphide (\( \text{H}_2\text{S} \))
  3. Methane (\( \text{CH}_4 \))
  4. Carbon dioxide (\( \text{CO}_2 \))

Correct answer · Option 4

Carbon dioxide (\( \text{CO}_2 \))

Explanation

The puffed-up appearance of dough is due to the production of carbon dioxide gas (\( \text{CO}_2 \)) during fermentation by bacteria and yeast.
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