With yeast, one of yeasts main point is to make dough rise.
Yeast are tiny microscopic animals. Yes, ANIMALS. When you put sugar in bread, yeast eat the sugar and release Carbon Dioxide, causing the gas pockets to make the dough rise.
Yeast is made up of microorganisms (fungi) that feed on starches and sugar, producing gas that makes dough rise. Yeast can digest sugar quicker than starches, so rises faster when sugar is included.
The yeast feeds on the sugar and releases CO2 gas as it does so. The gas bubbles make the dough rise.
Nothing happens. Yeast needs water to activate. Flour doesn't become dough without water. Sugar doesn't dissolve without water. You need water to make something happen.
To make pizza dough rise faster, you can use warm water to activate the yeast, place the dough in a warm environment, and add a small amount of sugar to feed the yeast and speed up the rising process.
Yeast turns some of the sugar in bread dough into alcohol and carbon dioxide. The carbon dioxide fills the bread with a lot of little bubbles. That makes it easy to eat. Without yeast bread would be like eating raw spaghetti.
Pretzels are made with yeast dough. Cake yeast could be substituted for dry yeast, or one might make a "sponge" or sour dough starter which uses wild yeasts from the air. But some sort of yeast must be used in order to make actual pretzels.
Flour, milk, sugar, salt, yeast
Flour, milk, sugar, salt, yeast.
Beer yeast can be used to make bread by activating it in warm water with sugar, then mixing it with flour and other ingredients to create dough. The yeast ferments the sugars in the dough, producing carbon dioxide gas that causes the dough to rise and create a light, fluffy texture in the bread when baked.
Yes, yeast is typically needed to make pizza dough as it helps the dough rise and gives it a light and airy texture.
To show that yeast was responsible for making the dough rise, you can conduct an experiment where you prepare two batches of dough- one with yeast and one without. Allow both doughs to rise, and observe that the dough with yeast rises significantly more due to the yeast's fermentation process producing gases that make the dough expand.