Question

Sumana prepared maida dough by taking 1/2 kg flour to which she added some sugar, mixed with warm water and at the end added a small amount of yeast powder. After two hours, she observed that the dough got raised. Which of the following is correct regarding this?

• A. Flour undergoes fermentation that results in raised dough
• B. Yeast reproduces rapidly in number which increase volume of the dough
• C. Yeast produces carbon dioxide during fermentation that fills the dough and increases its volume
• D. Water vapour formed from warm water raises the volume of the dough

Answer 1

The correct option is C Yeast produces carbon dioxide during fermentation that fills the dough and increases its volume

Fermentation is the process which is carried by anaerobic respiration of microorganism which leads to the production of lactic acid or alcohol with the release of carbon dioxide. When the yeast is added to the dough of the bread it converts the sugar to ethanol and carbon dioxide which forms bubbles and leads to the expansion of the dough.

So, the correct answer is option D.