flour
No, Pillsbury refrigerated biscuits do not contain yeast. American style baking powder biscuits are leavened with baking powder and baking soda.
Most biscuits use baking powder or baking soda in baking. Biscuits are a type of quick bread. Though some cooks do use some yeast to make their biscuits rise more.
look under biscuits
Yes, baking powder is used in preparation of cakes, but few breads. Baking powder and baking soda are leavens, which cause them to rise. Three to four teaspoons of baking powder is used in making biscuits. But most breads have yeast, in some cases salt, to make them rise.
You'll have to use a baking powder subsitute - something has to make the biscuits rise. There are a variety of options - try googling for a baking powder substitute. Buttermilk biscuits use baking soda instead.
measuring spoons - make sure you level off with a straight edge spatula
There are several foods that contain baking powder. Many breads, biscuits, cakes, cookies, and other food items contain baking soda.
Baking powder is used as leavening in baked goods such as cookies, cakes, quick breads, biscuits and pancakes. It creates gas in the batter that causes the product to rise.
Baking powder is a raising agent commonly used in cakes, biscuits, etc. If a recipes calls for baking powder, you should use it as it performs the important function of producing gases during the baking process which creates lift and aeration. If you do not use baking powder, where indicated, you will find that your cake will not rise or your biscuits will be flat and lifeless! There are, of course, lots of recipes which do not need baking powder. Also, self raising flour already contains a set quantity of raising agents and therefore recipes which use this as an infgredient are less likely to need further raising agents such as baking powder or sodium bicarbonate.
You cannot use baking powder as a substitute for baking soda
Leavening agents are the ingredients that make the baked goods rise so they are light and airy. It could be yeast, baking soda, or baking powder. Sometimes in cakes, the eggs are whipped into a froth to add air to the cake and this acts as a leavening agent.