Outline4 marksStandard
Outline how a simple respirometer, consisting of a sealed tube containing germinating seeds, soda lime, and a manometer with a coloured liquid marker, can be used to determine the respiratory quotient (RQ) of the seeds.
CAIE A Level Biology 9700 · Energy and respiration
Energy and respiration: outline question
How this question is marked
4 marks, so the mark scheme is looking for about 4 separate creditworthy points. Making the same point twice in different words earns it once.
Outline means: Give the main points briefly. Less detail than describe, but every key step has to be there. One short line per step, in order. The marks are for coverage, not depth.
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