CAIE A Level Biology 9700 · Transport in mammals
A marathon runner’s leg muscles generate large amounts of heat during a race. The blood and tissue fluid play a key role in preventing overheating. Describe how the high specific heat capacity of water contributes to the transport functions of blood and tissue fluid in this context.
6 marks, so the mark scheme is looking for about 6 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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