1
Sources of glucose for glycolysis
- Starch
- Glycogen
- Sucrose
- Lactose
2
Which enzyme acts upon both starch and glycogen?
α-amylase
3
Step 1
- Phosphorylation of glucose into glucose 6-phosphate
- Glucose + ATP → (Hexokinase) → Glucose 6-phosphate + ADP + H+
4
G-6P
Glucose 6-phosphate
5
Step 2
- Isomerization of glucose 6-phosphate into fructose 6-phosphate
- Glucose 6-phosphate → (Phosphoglucose isomerase) → Fructose 6-phosphate
6
F-6P
Fructose 6-phosphate
7
Step 3
- Phosphorylation of fructose 6-phosphate into fructose 1,6-bisphosphate
- Fructose 6-phosphate + ATP → (Phosphofructokinase) → Fructose 1,6-bisphosphate + ADP + H+
8
F-1, 6-BP
Fructose 1,6-bisphosphate
9
PFK
Phosphofructokinase
10
Step 4
- Cleavage of fructose 1,6-bisphosphate into glyceraldehyde 3-phosphate and dihydroxyacetone phosphate
- Fructose 1,6-bisphosphate → (Aldolase) → Glyceraldehyde 3-phosphate and dihydroxyacetone
11
GAP
Glyceraldehyde 3-phosphate
12
DHAP
Dihydroxyacetone phosphate