Glycolysis Flashcards
Which steps are in the energy-requiring phase?
1-5
Which steps are in the energy-releasing phase?
6-10
What is one glucose molecule converted into?
Two pyruvate molecules
How much ATP and NADH results from one glucose molecule?
Two molecules of each
What is oxidized in glycolysis?
Glucose
Which steps are highly favorable?
1, 3, and 10
They keep the process going in one direction
Which step is this?
Glucose -> Glucose-6-phosphate
Phosphate comes from ATP
Enzyme: hexokinase
Step 1
Which step is this?
Glucose-6-phosphate is isomerized to fructose-6-phosphate
Enzyme: phosphoglucose isomerase
Step 2
Which step is this?
Fructose-6-phosphate -> Fructose-1,6-bisphosphate
Phosphate comes from ATP
Enzyme: phosphofructokinase
Step 3
Which step is this?
Fructose-1,6-bisphosphate splits to form DHAP and G3P
Enzyme: fructose bisphosphate adolase
Step 4
Which step is this?
DHAP is converted to glyceraldehyde-3-phosphate
Enzyme: triose phosphate isomerase
Step 5
Which step is this?
Glyceraldehyde-3-phosphate is oxidized and NAD+ is reduced to NADH and H+. Add a phosphate, making 1,3-bisphosphoglycerate
Enzyme: G3P dehydrogenase
Step 6
Which step is this?
1,3-bisphosphoglycerate -> 3-phosphoglycerate
and ADP -> ATP
Phosphate from molecule goes to ADP, making ATP
Enzyme: phosphoglycerate kinase
Step 7
Which step is this?
3-phosphoglycerate isomerizes to 2-phosphoglycerate
Enzyme: phosphoglycerate mutase
Step 8
Which step is this?
2-phosphoglycerate loses an H2O, becoming phosphoenolpyruvate (PEP)
Enzyme: enolase
Step 9
