Glycolysis question

[FutureDental88]

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Thank you for the last respons Dentalworks.

My other question i have is : Does Substrate level phosphorylation occur as a part of glycolysis, or does it occur right after?

Because I was thinking. If its part of glycolysis; then glycolysis should yield a total of 6 ATP (net).
But everywhere it says that glycolysis yields 2.


Maybe im just going to deep into this...

Thank you.

 

[shdwpally]

1 ATP is used to turn glucose into G6P
1 ATP is used to turn F6P to FBP

FBP eventually breaks up into 2 3PGP.
2 ATP formed when 3PGP turns into 3PG
2 ATP formed when PEP turns into pyruvate.

Net (-1 + -1 + 2 + 2) = +2 ATP
All occurs during glycolysis

 

[FutureDental88]

In both Barrons AP biology 2011, and Kaplan, it says under Glycolysis; 2 NET ATP + 4 ATP for substans phosphorylation. Total of 6.

Thats why I was confused.

 

[dentalWorks]

Thank you for the last respons Dentalworks.

My other question i have is : Does Substrate level phosphorylation occur as a part of glycolysis, or does it occur right after?

Because I was thinking. If its part of glycolysis; then glycolysis should yield a total of 6 ATP (net).
But everywhere it says that glycolysis yields 2.


Maybe im just going to deep into this...

Thank you.

The term "Substrate Level Phosphorylation" means = directly producing ATP (or GTP) molecule... It is seen during the steps of glycolysis. This is NOT to be confused with the electron transport chain... The ATPs produced via electron transport chain are not sub level phosph.