Thursday, 3 November 2011

2.73 Glucose Reabsorption

Understand that selective reabsorption of glucose occurs at the proximal convoluted tubule.

Selective reabsorption means that it is selected and the reabsorption refers to idea that the glomerulus filtrate will go back to the blood.
  • Filtration happens in the bowman's capsule and the glumerulus filtrate will contain the molecule glucose (and many others e.g. water, salts, amino acids and urea).
  • At the end of the nephron is urine and normally urine does not contain glucose.
  • If you test and find glucose in your urine it is a condition known as diabetes.
  • In the first (proximal) convoluted tubule glucose is removed and taken back to blood.

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