Question

To make bread dough, a cook mixes flour, water, salt and yeast. After mixing, the dough is placed in a container for several hours to allow the process of fermentation to take place. During fermentation, a chemical change occurs in the dough: the yeast (a single-celled fungus) helps to transform the starch and sugars in the flour into carbon dioxide and alcohol Question 1: Fermentation causes the dough to rise. Why does the dough rise?

The dough rises because alcohol is produced and turns into a gas.

The dough rises because of single-celled fungi reproducing in it.

The dough rises because a gas, carbon dioxide, is produced.

The dough rises because fermentation turns water into a vapour.​

Answer 1

Explanation:

The yeast metabolizes the sugars and produce a liquid that releases carbon dioxide and ethyl alcohol in the dough.As the sugars are metabolized, carbon dioxide and alcohol are released into the bread dough, making it rise.