CAIE A Level Biology 9700 · Energy and respiration
Rice plants are often grown in flooded paddy fields where the roots are submerged in waterlogged soil. Describe how the structure of rice roots and the type of respiration they perform enable them to survive in these conditions.
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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