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Hello, students.
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Now, in this question, they have asked the purpose of fermentation in absence of oxygen.
00:08
So, if you observe carefully, when does fermentation occur? to understand that, first thing we need to understand is glycolysis.
00:16
What happens in glycolysis? you will observe that glucose or rather de -glucose, right? it is de -glucose that is converted to pyruate.
00:27
Correct so this pyruid has three fates so we need to understand the fate of pyruid here now there are two conditions put in front of pyruid to be going into the next step right the two conditions are one is aerobic what is it it is the aerobic right the other one is the anaerobic right which is in the absence of oxygen so in the aerobic conditions you will observe the usual, that is, the pyruvate will get converted to acetyl -coa.
01:04
What will it get converted to? it will get converted to acetyl -coa.
01:08
But during the anaerobic conditions, there are two fates again.
01:13
What are the two fates? one is in the presence of lactose dehydrogenies, it will get converted to lactate.
01:22
Right? and in the presence of ethanol dehydrogenase, it will get converted to ethanol.
01:30
Right...