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A plant cell is placed in a solution with a lower water potential than the cell sap. Which statement describes what happens?
9700_s24_qp_12 · Cell membranes and transportBiology 9700 · Paper 2 · Q3(b)Explain, in terms of water potential, why red blood cells burst when placed in distilled water.
9700_w23_qp_22 · Cell membranes and transportBiology 9700 · Paper 1 · Q11Potato cylinders were left in sucrose solutions. At which concentration is the water potential of the solution equal to that of the potato?
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Which statement about the active site of an enzyme is correct?
9700_s25_qp_12 · Paper 1Biology 9700 · Enzymes · Q4(a)Describe how a competitive inhibitor reduces the rate of an enzyme-catalysed reaction.
9700_w24_qp_22 · Paper 2Chemistry 9701 · Reaction kinetics · Q19Enzymes are biological catalysts. Which graph shows the effect of temperature on the rate of reaction?
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A ball is thrown vertically upwards with an initial speed of 12 m s⁻¹. What is the maximum height reached?
9702_s24_qp_12 · May/June 2024Physics 9702 · Kinematics · Q2(c)A car accelerates uniformly from rest. Calculate the distance travelled in the first 6.0 s.
9702_w24_qp_22 · Oct/Nov 2024Physics 9702 · Kinematics · Q7Which displacement–time graph represents an object moving with constant velocity?
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