Question

A group of students conduct a yeast fermentation experiment, shown in the diagrams. What question about the flow of matter and energy during fermentation does the experiment answer? a Do yeast use sugar for energy and produce a gas? b Does sugar combine with water to provide energy for yeast? c Do yeast consume gases in order to undergo reproduction? d Does water provide yeast with energy to undergo respiration?

Answer 1

The question that the experiment answers about the flow of matter and energy during fermentation is: **a) Do yeast use sugar for energy and produce a gas?**

This question directly relates to the process of fermentation, where yeast consumes sugar and produces energy, along with byproducts such as carbon dioxide gas.