Explain how Inactivity or absence of Glucose 6 phosphate dehydrogenase ; a rate limiting enzyme in the Pentose phosphate pathway could lead to oxidative stress.* The Electron Transport Chain and Pentose Phosphate Pathway biochemistry The Pentose Phosphate Pathway in YeastsMore Than a Poor Cousin of Glycolysis A) The NADPH producing steps of the oxidative pentose phosphate Download Scientific Diagram