Question

Write steps to observe fermentation of sugar by you.

Answer 1

In glass 1, mix one teaspoon of yeast, ¼ cup of warm water, and 2 teaspoons of sugar. In glass 2, mix one teaspoon of yeast with ¼ cup of warm water. In glass 3, place one teaspoon of yeast in the glass. Observe each cups reaction.

Answer 2

Ethanol fermentation causes bread dough to rise. Yeast organisms consume sugars in the dough and produce ethanol and carbon dioxide as waste products. The carbon dioxide forms bubbles in the dough, expanding it to a foam.

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