In the absence of oxygen, yeast cells can switch to a completely anaerobic metab

Question

In the absence of oxygen, yeast cells can switch to a completely anaerobic metabolism called fermentation. Which of the following is a final product of fermentation in yeast? Pyruvate must move from the cytosol into the mitochondria. where it oxidized to form CO_2 and acetyl CoA by the pyruvate dehydrogenase complex. How many different enzymes and what total number polypeptides, respectively, are required to perform this oxidation process in the mitochondrion? 1; 60 3; 3 3; 26 3; 60 in the absence of oxygen, mammalian cells will endure for a short time using a process called fermentation. Which of the following is a final product of fermentation in mammalian cells?

Explanation / Answer

1. the end product of fermentation in yeast is ethanol ( C2H5OH ).Option b is the correct answer.

2. Pyruvate dehydrogenase complex consists of 3 enzymes and around 60 polypeptide subunits required to convert pyruvate to acetyl CoA and CO2.Option d (3,60) is the correct answer.

3. The end product of fermentation in mammals is lactic acid (C3H6O3).Option a is the correct answer

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