Pentose Phosphate Pathway (PPP), Purine and Pyrimidine Metabolism Cell Biology, Genetics, and Biochemistry for Pre Clinical Students HMP Shunt (Pentose Pathway) The pentose phosphate pathway (PPP) in neuronal energy metabolism. Download Scientific Diagram The pentose phosphate pathway in health and disease Nature Metabolism The pentose phosphate pathway in health and disease Nature Metabolism HMP also known as the Pentose phosphate pathway. Consists of two irreversible oxidative rxs followed by a series of reversible