May/June 2026 Paper 62

2026 · 2 questions · 22 parts · 40 marks

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1(a)(i)1(a)(ii)1(a)(iii)1(a)(iv)1(a)(v)1(a)(vi)1(a)(vii)1(b)(i)1(b)(ii)1(b)(iii)1(b)(iv)1(b)(v)1(c)(i)1(c)(ii)1(c)(iii)

–/23 mks

2(a)(i)2(a)(ii)2(b)(i)2(b)(ii)2(b)(iii)2(b)(iv)2(c)

–/17 mks

2(a)(i)Medium4 marks

Figure 2.1 is a photograph of three beans in a pod.

Figure 2.1, a photograph of an opened bean pod containing three beans, with a vertical line PQ beside it marking the length of one bean

Draw a large diagram of the three beans and the pod shown in Figure 2.1.

Draw with the mouse or a finger.

2(a)(ii)Medium3 marks

Line PQ represents the length of one of the beans in Figure 2.1. Measure the length of line PQ.

The actual length of the bean is 19 mm. Using your measurement and the formula, calculate the magnification of the bean in Figure 2.1.

magnification = \frac{length of line PQ}{actual length of the bean}

Give your answer to two significant figures.

length of line PQ

magnification

2(b)(i)Medium1 mark

A student investigated the effect of temperature on the time taken for beans to germinate. The student: • planted 200 beans in trays containing soil, and kept them at

10^{\circ} C

• added 45

cm^{3}

of water to the trays each day • recorded the time when each bean started to germinate • calculated the mean time for germination • repeated the procedure at

20^{\circ} C

30^{\circ} C

40^{\circ} C

and

50^{\circ} C

. Identify the independent variable in this investigation.

2(b)(ii)Easy1 mark

Identify one variable that was kept constant in this investigation.

2(b)(iii)Easy1 mark

Suggest why the student planted so many beans.

Your answer

2(b)(iv)Easy1 mark

State the most appropriate piece of apparatus for measuring 45

cm^{3}

of water.

2(c)Hard6 marks

Beans contain the enzyme catalase. The age of a bean could affect the concentration of catalase it contains. Catalase catalyses the breakdown of hydrogen peroxide to release water and oxygen gas. Plan an investigation to determine if the age of the beans affects the volume of oxygen gas produced by this reaction.

Your answer