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CAIE A-Level Biology 8.1.9 Tissue Fluid

Practise explaining arteriole-end ultrafiltration, retention of cells and plasma proteins, venule-end reabsorption and excess tissue-fluid drainage into lymph vessels.

Syllabus
2028–2030
Course
Biology 9700
Level
AS

Exam points

  • link high arteriole-end hydrostatic pressure with filtration of water and small solutes
  • explain why blood cells and most plasma proteins remain within capillaries
  • describe fluid return at the venule end or drainage into lymphatic vessels

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