the carbon dioxide that is produced during fermentation expands which causes the dough to rise and the coagulation of the protein gluten prevents the dough from falling back into its original state (flat).
Bread made with a raising agent is called leavened bread or yeast bread.
yeast
bred without a yeast or a raising agent
It is the causative agent of thrush and yeast infections.
Yeast.
No, arrowroot is not a raising agent. It is a starch derived from the arrowroot plant, primarily used as a thickening agent in cooking and baking. While it can provide a light texture to certain recipes, it does not produce gas or create lift like traditional raising agents such as baking powder or yeast.
Levure in French means Yeast ( a raising agent used in bread, etc ).
yes. they're small living things inside of the yeast
I'm not sure what you mean by mechanical, but raising agents like baking soda, baking powder, and yeast make foods light and fluffy.
Actually, it does. It's just in very, very small amounts. There are various types of yeast in the air so some of it lands on the flour. Ages ago, it was the natural yeast in flour or in other bread ingredients that made bread rise. Now days we add the yeast to make the bread rise more predictably.
It really depends on what the flour/leavening agent/liquid mix is for. Most commonly, using something like that would be known as a poolish for making bread (flour, yeast, and water). However in making quick breads and cakes, there is no specific name for it. (Reference: Baking+Pastry Arts Graduate)
By the time you get around to using the mix, the yeast will be dead and expended.