Glucose 2 pyruvates 2 ATP 2 ADP (priming reactions) Steps 1-3 so since your using ATP you convert back to ADP 4 (ADP + P) 4 ATP---net gain of 2 ATP 2 NAD+ 2 NADH2 reduced to
What do enzymes in the glycolytic pathway form?
an enzyme chain... doesn't mean a literal chain ---a bunch of enzymes that work together one after the other--that do a job---he is referring to glycolysis
Phosphofructokinase--rate limiting enzyme in glycolysis why?
Phosphofructokinase is regulated by negative allosteric binding. The allosteric factor is ATP. It recognizes the high levels of ATP then turns off. This results in the accumulation of glucose-6-phosphate which then turns off hexokinase.
Hexokinase--rate limiting enzyme in glycolysis why?
Hexokinase is regulated by product inhibition (Glucoce-6-PO4 is the product of this enzyme). Nothing told the beginning part of the cycle to turn off so this keeps the cell having a good amount of metabolic energy available in the form of ATP but when too much is there it stops the breakdown of glucose.
Why are rate limiting enzymes in glycolysis like switches?
(Step 1 hexokinase & step 3 phosphofructokinase are like on an off switches that can allow or inhibit the breakdown of glucose).