A-LevelBiologyHomeostasisMay/June 2022Paper 4 Q97 Marks
(a) Ultrafiltration in the kidney takes place between the glomerulus and the Bowman's capsule. The afferent blood vessel carrying blood to the glomerulus has a wider lumen than the efferent blood vessel. Explain why the lumen of the afferent blood vessel needs to be wider than the lumen of the efferent blood vessel.
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