CAIE A Level Biology 9700 · Homeostasis
A person consumes a high-protein meal. Describe the process by which the body removes excess amino acids from the blood, including the roles of the liver and kidneys, and explain why this process is important for homeostasis.
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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