Identical pieces of potato are placed in sucrose solutions of different concentrations. After three hours, the mass of each potato piece is measured. Which graph shows the results of this experiment?

5090_s10_qp_11

MCQ

2010

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Identical pieces of potato are placed in sucrose solutions of different concentrations. After three hours, the mass of each potato piece is measured. Which graph shows the results of this experiment?

5090_s10_qp_12

MCQ

2010

Paper 1, Variant 2

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Identical pieces of potato are placed in sucrose solutions of different concentrations. After three hours, the mass of each potato piece is measured. Which graph shows the results of this experiment?

5090_s12_qp_11

MCQ

2012

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The graphs show how the levels of dissolved oxygen and nitrates change along the length of a river. Which graph shows the effect of sewage entering the river at the point marked X?

5090_s12_qp_11

MCQ

2012

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Identical pieces of potato are placed in sucrose solutions of different concentrations. After three hours, the mass of each potato piece is measured. Which graph shows the results of this experiment?

5090_s12_qp_12

MCQ

2012

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A student cuts out four cylinders of potato. Each cylinder is 30 mm long. The cylinders are all of the same diameter. The potato cylinders are placed in sugar solutions of different concentrations. After one hour, the lengths of the cylinders are measured again. The results are shown...

5090_s17_qp_11

MCQ

2017

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A student takes a potato and cuts three pieces from it. Each piece is 5 cm × 0.5 cm × 0.5 cm. He places the three potato pieces into three different concentrations of sugar solution. After two hours, he removes the potato pieces from the sugar solutions and measures their lengths. The results are shown...

5090_s20_qp_11

MCQ

2020

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The concentration of dissolved oxygen in the water of a river is measured at regular distances along the river. Some untreated sewage is accidently spilt into the river. Which graph shows the effect of this pollution on the dissolved oxygen in the water?

5090_s24_qp_12

MCQ

2024

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In a kidney dialysis machine, which substance cannot diffuse through the dialysis membrane?

5090_w13_qp_11

MCQ

2013

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Which features of the mesophyll layer in a leaf aid rapid diffusion of carbon dioxide into the cells?

5090_w15_qp_11

MCQ

2015

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