This powerpoint presentation covers Topic 11.3 (Kidneys) in the IB Biology curriculum. Each slide is labelled with the specific learning objective and animation/video links are provided in the slide notes.
The slides are formatted to print well for handouts or revision and I can provide a pdf version upon request.
As always, please let me know if you have any suggestions for improvements. These are always a work in progress!
**IB Biology Learning Objectives:
11.3.1 – Define excretion.
11.3.2 - Draw and label a diagram of the kidney.
11.3.3 – Annotate a diagram of glomerulus and associated nephron to show the function of each part.
11.3.4 – Explain the process of ultrafiltration, including blood pressure, fenestrated blood capillaries and basement membrane.
11.3.5 – Define osmoregulation.
11.3.6 – Explain the reabsorption of glucose, water and salts in the proximal convoluted tubule, including the roles of microvilli, osmosis and active transport.
11.3.7 – Explain the roles of the loop of Henle, medulla, collecting duct and ADH (vasopressin) in maintaining the water balance of blood.
11.3.8 – Explain the differences in the concentration of proteins, glucose and urea between blood plasma, glomerular filtrate and urine.
11.3.9 – Explain the presence of glucose in the urine of untreated diabetic patients.