There is moisture within the cake batter before it is baked. This comes mostly frow water, but also from milk and eggs and oil. As the cake is baked, the heat rises. This causes the moisture in the cake batter to turn to steam. Steam rises, but there is no place for it to escape. This causes the cake to puff up. Also, when the liquid cake batter cooks into a solid, it does naturally expand slightly, too.
It makes the pancakes rise.
No, pancakes do not contain yeast. Yeast is typically used in bread recipes to help the dough rise, but pancakes are made with baking powder or baking soda as leavening agents instead.
You cannot use baking powder as a substitute for baking soda
No, baking powder is what makes cakes rise.
There are several things which help baked products rise. The one you use often depends on what it is you are baking. For homemade breads, yeast is what is used to make the bread rise. For cakes, pancakes, biscuits and cornbread, baking soda or baking powder is what's used to make them rise. Also, eggs are the 'leavening' agent in some baked goods, such as pound cake.
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.
To make pancakes fluffier, you can add baking powder, which helps them rise during cooking. Separating the egg whites and beating them to soft peaks before folding them into the batter can also enhance fluffiness. Additionally, using buttermilk instead of regular milk can add acidity, which reacts with the baking powder for a lighter texture.
the purpose of baking powder in a cake is to make it rise and not make it flat and if you put too much of baking powder your cake might burst in the oven/microwave what ever you use
Cookie dough recipes generally call for either baking soda or baking powder, which create gas that expands and causes the dough to rise while baking.
to make it rise and be less dense
baking powder
Both baking powder and yeast can make things rise.