Glycolysis Flashcards
Does glycolysis require oxygen?
No, glycolysis is an anaerobic process
Where does glycolysis occur?
It occurs in the cytosol of the cell
What is the beginning molecule of glycolysis?
glucose
In step one of glycolysis, what enzyme does the work in most tissues?
Hexokinase, a transferase enzyme
In the first step of glycolysis, what enzyme is present in the liver?
glucokinase
The first step if glycolysis turns glucose into what molecule using what enzyme?
Hexokinase (in most tissues) and Glucokinase (in the liver) use ATP to create G6P
Phosphoglucoisomerase performs what function in step two of glycolysis?
rearranges G6P into Fructose-6-Phosphate
Why is step 2 of glycolysis necessary?
So the addition of a phosphate may occur in step 3
What enzyme is associated with step two of glycolysis?
Phosphoglucoisomerase
Name all the molecules (substrates and products) necessary for step 1 of glycolysis
Glucose, hexokinase, glucokinase, ATP, and G6P
Name the substrates and products of the second step in glycolysis
Phosphoglucoisomerase rearranges G6P into Fructose-6-phosphate
What enzyme is associated with the third step of glycolysis?
Phosphofructosekinase-1
What happens in the 3rd step of glycolysis?
PFK-1 uses ATP to add a phosphate group onto Fructose-6-phosphate to turn it into Fructose-1,6-bisphosphate
What is the product of the third step of glycolysis?
Fructose-1,6-bisphosphate
What enzyme is associated with the fourth step of glycolysis?
Aldolase
