Yeast

Yeast is a type of fungus that is commonly used in baking and brewing. In baking, yeast is used to leaven bread by converting the sugars in the dough into carbon dioxide, which causes the dough to rise. In brewing, yeast is used to ferment sugars in grains to produce alcohol. Yeast can also be used in the production of various fermented foods, such as vinegar and soy sauce. Additionally, yeast is used in laboratory and industrial settings for various applications such as biofuel production, biosynthesis of organic compounds and genetic engineering.