Describe5 marksStandard
Capillaries are the primary site of exchange between blood and body cells. Describe how the structure of capillaries is adapted for this exchange, and explain the formation and functions of tissue fluid.
CAIE A Level Biology 9700 · Transport in mammals
Transport in mammals: describe question
How this question is marked
5 marks, so the mark scheme is looking for about 5 separate creditworthy points. Making the same point twice in different words earns it once.
Describe means: Say what happens or what something is like, in order and with detail. You are not being asked why. If there is data, quote it: name the trend, then give figures with units at the points where it changes.
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