Which of the following statements is correct?The higher the temperature, the slower the rate of diffusion.The smaller the area, the faster the rate of diffusion.The longer the diffusion distance, the faster the rate of diffusion.The bigger the difference in concentration, the faster the rate of diffusion.

As the temperature increases, _____.Group of answer choicesthe rate of diffusion increasesthe rate of diffusion decreaseschange in rate of diffusion is unpredictablechange in rate of diffusion is unaffectedNext

When comparing the diffusion rate of a substance at differing concentrations within a liquid, _____.Group of answer choicesthe diffusion rate will increase with a lower solute concentrationthe diffusion rate for the substance is the same for all concentrationsthe diffusion rate will decrease with a lower solute concentrationthe diffusion rate will decrease with a higher solute concentrationNext

Select all that applyWhich of the following are ways in which the rate of diffusion of a gas across a membrane can be increased?Multiple select question.By decreasing the distance across which diffusion is occurring.By increasing the surface area of the membrane.By increasing the volume of gas on each side of the membrane.By decreasing the pressure difference between the two sides of the membrane.

1. Describe two variables that affect the rate of diffusion. __________________________________________________________________________________________________ __________________________________________________________________________________________________ 2. Why do you think the urea was not able to diffuse through the 20 MWCO membrane? How well did the results compare with your prediction? __________________________________________________________________________________________________ 3. Describe the results of the attempts to diffuse glucose and albumin through the 200 MWCO membrane. How well did the results compare with your prediction? __________________________________________________________________________________________________ __________________________________________________________________________________________________ 4. Put the following in order from smallest to largest molecular weight: glucose, sodium chloride, albumin, and urea. __________________________________________________________________________________________________ __________________________________________________________________________________________________ Simulated Facilitated Diffusion 1. Explain one way in which facilitated diffusion is the same as simple diffusion and one way in which it differs. __________________________________________________________________________________________________ __________________________________________________________________________________________________ 2. The larger value obtained when more glucose carriers were present corresponds to an increase in the rate of glucose transport. Explain why the rate increased. How well did the results compare with your prediction? __________________________________________________________________________________________________ __________________________________________________________________________________________________ 3. Explain your prediction for the effect Na+Cl- might have on glucose transport. In other words, explain why you picked the choice that you did. How well did the results compare with your prediction? __________________________________________________________________________________________________ Simulating Osmotic Pressure 1. Explain the effect that increasing the Na+Cl- concentration had on osmotic pressure and why it has this effect. How well did the results compare with your prediction? __________________________________________________________________________________________________ __________________________________________________________________________________________________ 2. Describe one way in which osmosis is similar to simple diffusion and one way in which it is different. __________________________________________________________________________________________________ __________________________________________________________________________________________________ 3. Solutes are sometimes measured in milliosmoles. Explain the statement, "Water chases milliosmoles"

Which of the following is true about diffusion?Multiple choice question.Molecules move against their concentration gradients.Molecules move down their concentration gradients.