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Fermentation of Glucose

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frog1944:
Hi,

In the fermentation of glucose, is it correct that the yeast excrete the catalyst zymase which lowers the activation energy for the glucose-ethanol reaction? Or is the yeast which respire the glucose to produce ethanol? Or are these the same?
(I'm a chemistry student and not a biology student, and thus the technicalities of the micro-organisms I don't know)

Thanks

jakesilove:

--- Quote from: frog1944 on May 28, 2017, 07:27:45 am ---Hi,

In the fermentation of glucose, is it correct that the yeast excrete the catalyst zymase which lowers the activation energy for the glucose-ethanol reaction? Or is the yeast which respire the glucose to produce ethanol? Or are these the same?
(I'm a chemistry student and not a biology student, and thus the technicalities of the micro-organisms I don't know)

Thanks

--- End quote ---

Hey! At the end of the day, we are Chemists, not Biologists, so this doesn't really matter. What you need to be able to say is that the yeast acts as a catalyst, by fermenting the Glucose into Ethanol and Carbon dioxide in anaerobic conditions. Beyond that, you're definitely moving outside the curriculum!

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