What roles does yeast play in bread-making?

Answer 1

Yeast causes bread to rise.

EDIT: Yeast reacts with sugar to make carbon dioxide gas. this creates bubbles in the bread mixture, causing the dough to rise. When you cut into a loaf - all those little 'holes' in the bread are the spaces left by the carbon dioxide bubbles !

Answer 2

Yeast makes the bread rise and expand and also adds flavour to the bread. The less yeast you put in, the flatter the bread will be. the heat increases the yeast production, making it rise and be fluffy.

Answer 3

It supplies carbon dioxide which inflates the dough during the early stages of cooking - makes the bread rise basically as well as it getting larger all round.

Answer 4

it makes bread rise and expand. it also helps to keep the bread flat and taste like cherries.

Answer 5

Yeast produces the tiny bubbles of Carbon dioxide gas which makes the dough 'rise.'

Answer 6

It makes the bread rise by eating off the sugars and giving off carbon dioxide in a form of a fart.

Answer 7

It makes the bread rise by producing co2

Answer 8

the yeast makes it raise