HMP also known as the Pentose phosphate pathway. Consists of two irreversible oxidative rxs followed by a series of reversible Explain how Inactivity or absence of Glucose 6 phosphate dehydrogenase ; a rate limiting enzyme in the Pentose phosphate pathway could lead to oxidative stress.* Metabolism: The pentose phosphate pathway and G6PD deficiency (practice) Khan Academy Pentose Phosphate Pathway ChemTalk Pentose Phosphate Pathway Biochemistry Flashcards ditki medical and biological sciences PENTOSE PHOSPHATE PATHWAY