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Question: Answered & Verified by Expert
The puffed-up appearance of dough in a bakery is due to:
BiologyMicrobes in Human WelfareNEET
Options:
  • A CO2 production during fermentation by yeast
  • B CO2 production during aerobic respiration by yeast
  • C Death of yeast
  • D Spoiling of the dough due to death of yeast and production of many gases
Solution:
1365 Upvotes Verified Answer
The correct answer is: CO2 production during fermentation by yeast
The dough which is used for making foods such as dosa, biscuit and bread etc. are fermented by bacteria or yeast (Saccharomyces cerevisiae). The puffed-up appearance of dough is due to the production of CO2 gas. Bacteria are present in the atmosphere and the yeast has to be added to the dough.

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