In my bio class right now, we’re doing an experiment where we mix water, yeast and different types of sugar in three different test tubes to see which type of sugar allows the yeast to perform cellular respiration the best.
Our teacher said that the best way to find out which type of sugar performed the best was to find out which type of sugar + yeast released the most CO2. Our group decided to measure this by recording the pH of the water after a couple days, and recording the height of the foam. The test tubes are uncovered. Is this a good approach to find out which test tube released the most CO2?