1. Consider a glucose molecule that was taken up by aerobic eukaryote, anaerobic prokaryote and facultative...

1. Consider a glucose molecule that was taken up by aerobic eukaryote, anaerobic prokaryote and facultative anaerobe prokaryote cell- wheat will be the fate of this molecule? How will each of these cells metabolize it and how much energy will each get? Emphasize on what are the most important charcteristics of glycolysis, Kreb's cycle and ETC- what is starting substrate, what is product and where does it take place. 2.Give your OWN EXAMPLES of different types of enzymes and then explain these to describe their activity. microbiology I need reference page where you got the answer from. thanks

Expert Solution

Answer- There can be 3 fates of glucose molecule based on different types of organisms.

1.For aerobic organisms they have 3 different sets of reactions for the metabolization of glucose from food.

Glycolysis
Kreb cycle
Electron transport chain

In glycolysis the end product is 2* (pyruvic acid) and 2*NADH and 2* ATP. Starts from 1 molecule of Glucose. Occurs without oxygen.

In kreb cycle and its end product is 2 ATP , 6 NADH and 2 FADH2. Initiates by 2 molecules of of Acetyl CoA.

In electron transport system the end product is net 32 ATPs. Comprise of 5 Complexes of enzymes which convert high energy substrate ti ATPs.

2.For facultative anarobes they have slightly different pathways which ultimately leads to 2*(Lactic acid) And 2 ATP are formed only for a glucose molecule. The end product of glycolysis pyruvic acid 3C is converted to lactic acid (3C).

3.For anarobes prokaryote they form ethanol and Carbon dioxide from the pyruvic acid , the end product of glycolysis and this occurs in the cytosol and this whole reaction is called as Fermentation. Ethanol (2C) and Co2 (1C) is formed.

gladiator answered 1 year ago

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