Yeast is a living organism (a fungus). It feeds off the sugar in the bread and respires, meaning that it takes in oxygen and gives out carbon dioxide. The carbon dioxide given out forms bubbles in...
Self raising flour makes bread cupcakes cakes and almost every baked item you put it into
Alcoholic Fermentation causes bread to rise.
Gas produced by yeast causes bread dough to rise.
carbon dioxide the yeast is producing
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