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128 results for “water potential of the solution”Biology 9700 · Paper 1 · Q14

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 transport
Biology 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 transport
Biology 9700 · Paper 1 · Q11

Potato cylinders were left in sucrose solutions. At which concentration is the water potential of the solution equal to that of the potato?

9700_m24_qp_12 · Cell membranes and transport
Question9700_s24_qp_12
14A plant cell is placed in a solution with a lower water potential than the cell sap. Which statement describes what happens?Athe cell gains water by osmosisBthe cell loses water by osmosisCwater enters by active transportDthere is no net movement of water
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214 results for “enzymes”Biology 9700 · Enzymes · Q8

Which statement about the active site of an enzyme is correct?

9700_s25_qp_12 · Paper 1
Biology 9700 · Enzymes · Q4(a)

Describe how a competitive inhibitor reduces the rate of an enzyme-catalysed reaction.

9700_w24_qp_22 · Paper 2
Chemistry 9701 · Reaction kinetics · Q19

Enzymes are biological catalysts. Which graph shows the effect of temperature on the rate of reaction?

9701_s24_qp_13 · Paper 1
Question9700_s25_qp_12
8Which statement about the active site of an enzyme is correct?Ait binds to any substrateBit is complementary in shape to the substrateCit is made of carbohydrateDit is unchanged by temperature
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46 results for “physics 2024 kinematics”Physics 9702 · Kinematics · Q9

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 2024
Physics 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 2024
Physics 9702 · Kinematics · Q7

Which displacement–time graph represents an object moving with constant velocity?

9702_m24_qp_12 · Feb/March 2024
Question9702_s24_qp_12
9A ball is thrown vertically upwards with an initial speed of 12 m s⁻¹. What is the maximum height reached?A3.7 mB7.3 mC12 mD14.7 m
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