the yeast
Some gases expand, which is what causes the bread and cakes to rise and become lighter and "fluffier". Others will escape out of the baked goods.
Bread,cake, muffin they rise because they have flour. And when you put it in the oven it gets rise because of pressure
yeast does du :) :0 look it up anyone knows that ask mom or dad
Yeast.
Fermentation causes bread dough to rise. Certain yeasts and bacteria are capable of producing energy from sugars through fermentation. Yeast such as S. cerevisiae causes bread dough to rise. - Intro to Biotechnology (Third Edition): Thieman & Palladino
It produces gases and causes the bread to rise.
Pan de sal is a kind of bread, meaning that the yeast causes it to rise like it causes any bread to rise. Namely, yeast causes fermentation, and in breads, this interaction with the monosaccharides found in the dough creates carbon dioxide bubbles that cause the bread to rise.
Carbon dioxide
The flour has a reaction to the other ingreedients and causes the cake to rise.
Bread rises from having yeast react to warm water and eat up sugars in which causes bubbling in which makes bread rise. :D
C02 babe
Cakes are sweeter and more delicious than bread.