NEET BIOLOGY

Detailed explanation-1: -Yeast is a fungus used for making bread. It is mixed with the dough, where it grows actively and releases carbon dioxide. This carbon dioxide helps in the rising of the dough. When this dough is subjected to high baking temperatures, carbon dioxide escapes from the dough resulting in soft and fluffy bread.

Detailed explanation-2: -Yeast are a single-celled, microscopic fungi that are essential for many kinds of bread making. These little living creatures produce gas which is used to raise, or leaven, bread. Yeast are common microorganisms.

Detailed explanation-3: -A yeast called Saccharomyces cerevisiae is mixed with sugar, flour and warm water to make bread.

Detailed explanation-4: -As the yeast feeds on the sugar, it produces carbon dioxide. With no place to go but up, this gas slowly fills the balloon. A very similar process happens as bread rises. Carbon dioxide from yeast fills thousands of balloonlike bubbles in the dough.