Biology 5090 · O Level · Photosynthesis

Photosynthesis — practice question

Fig. 3.1 illustrates mustard plant seedlings placed in Petri dishes on moist filter paper.
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Plan an investigation to find out how changing light intensity affects the increase in height of mustard plant seedlings in Petri dishes, as shown in Fig. 3.1.

Worked solution & mark scheme

This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Use at least three different light intensities” …

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