Question

why does yeast cause the dough to rise
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Answer 1

Answer:

Once reactivated, yeast begins feeding on the sugars in flour, and releases the carbon dioxide that makes bread rise (although at a much slower rate than baking powder or soda). ... This gum-like substance fills with thousands of gas bubbles as the yeast goes to work during rising.

Answer 2

Explanation:

Once reactivated, yeast begins feeding on the sugars in flour, and releases the carbon dioxide that makes bread rise (although at a much slower rate than baking powder or soda). ... This gum-like substance fills with thousands of gas bubbles as the yeast goes to work during rising.