Glucose metabolism begins with its transport into cells via GLUT transporters, where it is phosphorylated to glucose 6 phosphate (Glucose 6 P). This molecule can enter various pathways, including the pentose phosphate pathway or hexosamine biosynthesis. The Pentose Phosphate Pathway Flashcards Quizlet Pentose Phosphate Cycle an overview ScienceDirect Topics The Electron Transport Chain and Pentose Phosphate Pathway biochemistry Quantitative modeling of pentose phosphate pathway response to oxidative stress reveals a cooperative regulatory strategy: iScience