(a)[6]
Devise an investigation that the students could perform to discover how different fertiliser concentrations affect plant growth.
(b)[1]
State the factor that is changed deliberately in this investigation.
Biology 5090 · O Level · Mineral nutrition
Mineral nutrition — practice question
Plants may be supplied with fertiliser to support their growth.
Some students were given germinated seeds of the same species in several shallow dishes together with a 10% fertiliser solution. One dish is illustrated in Fig. 3.1.
The students could use any other ordinary laboratory apparatus.
Worked solution & mark scheme
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