i thought gluconegogenesis is the reverse of glycolysis...

[DDSguyLA]

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destroyer says otherwise.

????

 

[Streetwolf]

Conceptually perhaps, but step by step it isn't. Several molecules can wind up giving you glucose that weren't originally in glycolysis or the Krebs cycle. And even the ones that can be found there don't go straight back the same way. There are certain steps of glycolysis that ONLY go forward. To reverse it, you'd need different enzymes.

 

[topdent1]

destroyer says otherwise.

????

Its close, but not exactly the reverse of glycolysis. Gluconeogenesis is processed in the liver where as glycolosis takes place in the cytoplasm. You are correct, however, that glucose is a product of gluconeogenesis and that it is produced from lipids and glycerol and other non carbohydrates. Anyone have anything else to add?

 

[HoangDDS]

destroyer says otherwise.

????

It is definitely not the reverse of glycolysis, however there are some similar steps. Glucouseneogenesis is the formation new glucouse molecules. Your body undergoes gluconeogenesis when there is not enough glucose in the body. Besides the liver, the kidney is also capable of gluconeogenesis, but mainly during a prolonged fast.

 

[DDSguyLA]

so if i see it on test day, the statement is false, right??

"Gluconeogenesis is the reverse of glycolysis"

also,
what is the exact reverse of glycolysis??

 

[yakuza]

so if i see it on test day, the statement is false, right??

"Gluconeogenesis is the reverse of glycolysis"

also,
what is the exact reverse of glycolysis??

There is no reverse of glycolysis. Gluconeogenesis is kinda like going backwards because it uses a lot of the same enzymes and stuff..BUT theres I think 3 steps that cannot be reversed.

 

[Xtian]

I think the big point is that in order for delta G to be energetically favorable, gluconeogenesis can't be exactly the same as glycolysis--that's what's stressed in biochem and seems to me why destroyer makes that point.

 

[doc3232]

Thanks guys

What is reverse of fermentation? As in lactic acid to pyruvate?
Oxygen Recovery or?
Any names we need to know for this?