Question
Ben decides to bake bread. The recipe says to dissolve yeast in a mixture of sugar and hot water. Shortly after he does so, the mixture begins to bubble. What is happening? How would the outcome change if Ben forgets to add the sugar?
Step 1
Yeast is a microorganism that feeds on sugar and produces carbon dioxide gas as a byproduct. This gas is what causes the mixture to bubble. The yeast uses the sugar as a food source and starts to metabolize it. As it metabolizes the sugar, it releases carbon Show more…
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