Fermentation and cellular respiration with same ATP synthesis rate

[runner2392]

You are comparing two cultures of cells. One undergoes cellular respiration and one ferments. Both cultures produce ATP at the same rate (for example, 100 ATP/msec). If this is true, what else would you observe about the fermenting culture? Choose /any that apply.

a. It would require more glucose per minute than the respiring culture

b. It would have a higher rate of glycolysis than the respiring culture

c. It would produce pyruvate at a faster rate than the respiring culture

d. It would require more oxygen than the respiring culture

Would it be a,b,c because anaerobic resp. produces less ATP per glucose molecule so if anaerobic and aerobic respiration have the same rate of ATP synthesis, then the anaerobic respiration would have to be consuming more glucose, which means it has higher rate of glycolysis than the respiring culture, and that it would produce pyruvate at a faster rate than the respiring culture.

 

[nate808]

Correct, the correct answers would be a, b, and c. The fermenting culture would require more glucose per minute because anaerobic respiration produces less ATP per glucose molecule. This means that in order to produce the same amount of ATP, the fermenting culture would need to use more glucose. This also means that the rate of glycolysis would be higher in the fermenting culture because it is the first step in both aerobic and anaerobic respiration, and the fermenting culture would need to produce more pyruvate in order to continue the process of fermentation and produce ATP at the same rate as the respiring culture. However, since fermentation does not require oxygen, the fermenting culture would not require more oxygen than the respiring culture.