Mastering A&P 4

Which of the following solutes would move the fastest? albumin urea glucose sodium chloride

For solutes that move by simple diffusion, which of the following does NOT affect the rate of simple diffusion across a membrane? Check all that apply. the membrane pore size the potential energy of the solute the size of the solute the concentration of the solute

In this activity, the solutes were transported through the dialysis membrane by _______. facilitated diffusion osmosis simple diffusion active transport

Through which membrane(s) would sodium chloride diffuse? 20 MWCO, 50 MWCO, 100 MWCO, and 200 MWCO 100 MWCO and 200 MWCO 50 MWCO, 100 MWCO, and 200 MWCO 200 MWCO only

Which of the following is NOT a passive process? osmosis vesicular transport facilitated diffusion filtration

When the solutes are evenly distributed throughout a solution, we say the solution has reached _______. diffusion equilibrium velocity permeability

Which of the following does NOT describe the plasma membrane? selectively permeable semipermeable differentially permeable impermeable

Which of the following requires a membrane-bound carrier for transport? filtration osmosis facilitated diffusion simple diffusion

Describe two variables that affect the rate of diffusion.

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?

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?

Put the following in order from smallest to largest molecular weight: glucose, sodium chloride, albumin, and urea.