The diagram shows two different solutions that are separated by a partially permeable membrane. partially permeable membrane dilute solution concentrated solution of sucrose of sucrose X Y 10 According to their water potential gradient, in which direction will most water molecules move? A from X to Y with the water potential gradient B from X to Y against the water potential gradient C from Y to X with the water potential gradient D from Y to X against the water potential gradient The graph shows the rate of an enzyme-controlled reaction vs the temperature.