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CAIE A-Level Biology 8.1.8 Water as the Main Blood Component

Practise using water's polarity to explain plasma transport of ions and polar solutes, and its high specific heat capacity to explain distribution of metabolic heat.

Syllabus
2028–2030
Course
Biology 9700
Level
AS

Exam points

  • explain dissolved transport of ionic and polar substances through water’s solvent action
  • distinguish substances carried in plasma from cells and large proteins retained in blood
  • link water’s high specific heat capacity with transport and buffering of metabolic heat

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