Standard Science Primary 3 Diversity

Why do bakers add yeast to bread dough?

A To kill harmful bacteria
B To make the bread dough rise
C To change the color of the bread
D To make the bread taste salty
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Worked Solution

Step 1: Yeast is a type of fungi used in food production. Step 2: When yeast feeds on sugar in the dough, it produces carbon dioxide gas. Step 3: This gas gets trapped and causes the dough to expand or rise.

Correct answer: To make the bread dough rise

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