00:01
Okay, so in this question, we are being asked to find out which molecule does fermentation recycle.
00:13
So this is the overall process of fermentation.
00:25
Let me choose a different color here.
00:28
From glucose all the way down to pyruvate, this is glycolysis.
00:37
And glycolysis is common to both fermentation and the aerobic process, and pyruvate has a choice to go either into fermentation or into the citric acid cycle, and then on to the electron transport chain.
00:59
Okay, so this is just to sort of keep things in perspective of where things split off.
01:07
Between the electron transport chain and fermentation.
01:13
Now, fermentation, you are taking pyruvate and you are either making two lactate or two alcohol, depending on whether you're an animal or a plant...