IGCSEBiologyEdexcelRevision Notes2. Structure & Function in Living OrganismsExcretion2.76B Reabsorption of Water

2.76B Reabsorption of Water (Edexcel IGCSE Biology)

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Reabsorption of Water

Reabsorption of water & salts

  • As the filtrate drips through the Loop of Henle necessary salts are reabsorbed back into the blood by diffusion and active transport
  • As salts are reabsorbed back into the blood, water follows by osmosis
  • Water is also reabsorbed from the collecting duct in different amounts depending on how much water the body needs at that time

reabsorption-in-the-nephron

Diagram showing reabsorption in the nephron

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    Lára

    Author: Lára

    Lára graduated from Oxford University in Biological Sciences and has now been a science tutor working in the UK for several years. Lára has a particular interest in the area of infectious disease and epidemiology, and enjoys creating original educational materials that develop confidence and facilitate learning.