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.
no self raising flour has raising agent but no yest. you have to buy that separate.
No, pastry does not need or use a leavening agent.
No. Plain flour does not contain yeast. Some flour mixes do.
It depends on the type of noodle, but most noodles do not contain yeast. Some noodles contain water and rice. Others contain flour (semolina), eggs and water. The term "yeast noodle" is sometimes used in the context of beer brewing.
No, potatoes definitely do not contain yeast. Yeast is a rising agent added to flour to help it rise - and that makes bread. But no, yeast is not made from potatoes and is a micro-organism, in fact a fungi, that's cultivated and is purchased in small packets which we then add to flour to make bread.
No you cant use yeast to make rice but you can use it to make bread i think. Who would use yeast when making rice? Yes, you can use yeast in a similar manner with rice flour as you do with flour that's made from wheat.
yeast and baking powderActually, there is no yeast in self raising flour. Self raising flour is flour with bicarbonate of soda and cream of tartar (tartaric acid). This causes a double action rising effect. This is essentially the same as plain flour with added baking powder.
flour , yeast , warm water , salt
Flour, sugar, eggs, baking soda, salt. There is no yeast in a quick bread.
No, cornmeal and yeast are used for baking, but they are not the same. Yeast is actually a bacteria an is used to make things like bread dough rise. And Cornmeal is used like a flour, to make corn muffins and corn meal mush. To get straight and a shorter answer, NO they are not the same they are basically opposites.
the difference between the two are that self rising has yeast in it. so all you have to do is get some yeast and mix it with the flour.
Flour eggs is physical and yeast to bread chemical
Wheat flour doesn't contain sugar. Sugar can be released if enzymes are present. Some flour has enzymes added to it (as malted barley flour) to help break down the starch into sugars so yeast can grow better.
Yeast is a living organism. Salt, sugar and flour are compounds that are not alive.