A difference between the dialysis tubing used to in the lab

A difference between the dialysis tubing used to in the lab to simulate a restrictive barrier and the phospholipid bilayers that surround living cells is:

a) The phosopholipid bilayer restricts movement of ions and molecules based exclusively on their size.

b) The dialysis tubing restricts movement of ions and molecules based exclusively on their relative polarities.

c) The phospholipid bilayer restricts movement of ions and molecules based exclusively on their relative polarities.

d) The dialysis tubing restricts movement of ions and molecules based exclusively on their size.

e) None of the above.

Solution

The correct answer is

C)

The phospholipid bilayer restricts movement of ions and molecules based exclusively on their relative polarities.

D)

The dialysis tubing restricts movement of ions and molecules based exclusively on their size.

Dialysis tubing facillitate the removal or exchange of small molecules from macromolecules in solution based on differential diffusion.

Phospholipid is thin polar membrane made up of two layer of lipid that facillitates the movement of molecule on the basis of their polarity.