Biology 9700 · AS & A Level · Investigation of limiting factors
Investigation of limiting factors — practice question
A student carried out an investigation into how temperature affected the rate of photosynthesis at two different light intensities. The rate of photosynthesis was found by measuring how quickly oxygen was produced by the plant. Fig. 7.1 presents the results of the investigation.
(a(i))[3]
With reference to Fig. 7.1, describe and explain the outcomes of the investigation for the plant in low light intensity.
(a(ii))[3]
With reference to Fig. 7.1, describe and explain the outcomes of the investigation for the plant in high light intensity above $30\,^{\circ}\text{C}$.
(b)[3]
Describe the process that forms oxygen during non-cyclic photophosphorylation.
Worked solution & mark scheme
This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: “rate of oxygen production or photosynthesis is low or unchanged” …