4) Involves phosphorylation at the substrate level:
a) Kinase
b) Gluconeogenesis
c) Hypoxia
d) Lactate
e) Fructose 6-phosphate to fructose 1,6-bisphosphate
f) Phosphoenolpyruvate to pyruvate
g) Glyceraldehyde 3-phosphate to 1,3-bisphosphoglycerate
h) Pyruvate to Acetyl-CoA
i) Pyruvate
j) Oxaloacetate and alpha-ketoglurate