Multiple choice

If a paste of rice or wheat flour is left overnight in the kitchen, its volume increases significantly because of _______.

  1. The aromatic air of the kitchen

  2. Bacterial growth

  3. Swelling of starch particles in the flour due to absorption of water and air

  4. The release of carbon dioxide due to the activity of yeast
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The fermentation process carried out by yeast releases carbon dioxide gas. This gas gets trapped in the dough, causing it to rise and increase in volume.

Keep practicing — related questions