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Diffusion, Osmosis, and Tonicity

Question 1

The larger the molecular weight, the greater the rate of diffusion. The independent variable was the differing concentrations of solutions. On the contrary, the dependent variable was the percentage in the change of mass. Moreover, the control variable was the distilled water.

Question 2

The higher the concentration gradient, the higher the arte of osmosis. The independent variable was the differing concentrations of solutions. On the contrary, the dependent variable was the percentage in the change of mass. Moreover, the control variable was the distilled water.

Question 3

The higher the levels of temperature, the greater the rate of osmosis. The independent variable was the differing concentrations of solutions. On the contrary, the dependent variable was the percentage in the change of mass. Moreover, the control variable was the distilled water.

Part b

Question 1

Osmosis defines a specialized form of diffusion that entails the passive transport of water. In Osmosis, water tends to move via a certain permeable membrane from a region of higher concentration to a region of lower concentration. Here, the membrane selectively enables passage of particular forms of molecules while restricting the movement of others.

Question 2

The greater the particle size/weight, the higher the rate of diffusion. Moreover, the rate of diffusion is inversely proportional to the size of the particle.

Question 3

When the temperature level rises, the particle that weighs 484WH is the most diffused than the other particles. On the other hand, the particle that weighs 294WH has the lowest form of diffusion. Higher levels of temperature would depict that particle that weigh 484WH has more energy that allows it to push other particles leading to the highest levels of diffusion.

Question 4

The higher the difference between the concentration of water inside a cell and the concentration outside a cell, the quicker the rate of osmosis and vice versa.

Question 5

When the aspect of concentration gradient of a solution is considered on the rate of diffusion then the solvent with 45% concentration of sucrose will experience the highest levels of osmosis than other forms of solvents. On the contrary, the distilled water will possess the lowest levels of osmosis. Cells use osmosis to uphold concentration equilibrium.

Question 6

The greater the levels of temperature, the greater the amount of energy that is present for diffusion and hence a higher rate of osmosis.

Question 7

Based on the aspect of the levels of temperature, the solution in the beaker at the warm bath will experience the highest levels of diffusion. On the contrary, the solution in the beaker with ice will have the lowest levels of diffusion. Increase in levels of temperature will depict the sudden pushing of articles among each other leading to higher levels of diffusion.

Question 8

The larger the concentration gradient, the higher the rate at which the particle size/weight will reduce.

Question 9

0.5M glucose and 0.5M sucrose experienced no change in this experiment. Consequently, 0.5 M urea and 0.5 M glycerolexperienced haemolysis of the red blood cells. Urea and glycerol can enter the cell, water precedes them into the cell since it is then in greater concentration outside.

 

 

 

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