Question

Suppose two students were experimenting with yeast to study cellular respiration. One student found glucose to be the most efficiently consumed sugar by yeast, whereas the other student found maltose to be the most efficiently consumed sugar by yeast. Which of the following could explain the results
A.Neither of the two answer choices could explain the results.
B.Different organisms process food sources differently due to the availability of food and other environmental conditions. The students may have used different yeast strains.
C.Either of the two answer choices could explain the results.
D.Organisms have varying optimal conditions at which they work the best. The students may have used different temperatures or pH levels for their individual experiments.

Answer 1

The correct option is D. Organisms work best at their optimum temperature and pH, above and below these temperature they will not be able to function as expected. It is possible that the students above use different temperature and pH when they were carrying out their experiments, this will result in different efficiency rate by the yeasts.