2.77B: Understand Why Selective Reabsorption of Glucose Occurs at the Proximal Convoluted Tubule

SELECTIVE REABSORPTION OF GLUCOSE

s Diagram Showing the Reabsorption of Glucose s

PROCESS: s Renal Artery transports Oxygenated blood to the Glomerulus within Bowman's Capsule under high pressure for ultrafiltration, producing Glomerular Filtrate composed of Water, Glucose, Salts and Urea Glomerular Filtrate enters the Proximal Convoluted Tubule (PCT), where all Glucose is reabsorbed into surrounding capillaries via selective reabsorption Nephron is adapted by having large quantities of Mitochondria to provide energy in the form of ATP for the active transport of Glucose molecules across membrane Nephron is adapted by having thin membranes to minimise distance of active transport, allowing efficient rate of reabsorption