cellular respiration

[joonkimdds]

how many ATP are produced?
some book say 36, but some say 38.
This is because some books say NADH makes 3 ATP, but other books say NADH from glycolysis produces 2ATP. I don't know which one to trust.
My textbook says about 36 or 38 ATP and I don't know why it's not trying to be more accurate.

and what really is the oxidative phosphrylation? When i read the definition I can't distinguish it from electron transpot chain.

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[slashnroses19]

36 for eukaryotes and 38 for prokaryotes

 

[haavoc]

Prokaryotes lack membrane bound organelles, e.g., mitochondria, therefore, there is no ATP cost of moving from the cytoplasm across the mitochondrial membrane.