Medical
Biology
Osmoregulation
Human Kidney and Nephron
Formation of Urine
Question
Draw a labelled histological diagram of the kidney. Describe how selective reabsorption takes place in the kidney tubule.
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Solution
Selective reabsorption takes place in the proximal convoluted tubule (PCT) of the kidney. It is the process by which useful substances within the glomerular filtrate (such as glucose, amino acids, vitamins and water) are taken back into the blood after ultrafiltration. As only certain substances are reabsorbed, it is known as selective reabsorption.
