experiment of yeast

on august my group made an experiment with the rest of the class in the school's science lab.

the  experiment is about thye growing of yeast.

so its about puting  baloons on top of  flask A and B.

next the yeast and sugar in flask B will create co2 and the balloon will inflate.

while the balloon in flask A will inflate slower .

so yeast or other cells will grow faster with