Question 2 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 option specifically relates to the fermentation process, where yeast metabolize sugars to produce energy and byproducts, including gases like carbon dioxide.