Question

Which of the following will pass through a cell membrane most easily? Multiple Choice small,

a.polar molecules small,
b.nonpolar molecules large,
c.polar molecules large,
d.nonpolar molecules large,
e.neutral molecules

Answer 1

Non polar molecule, small

Step-by-step explanation:

Cell membrane is a selectively permeable membrane.

Factors that affect permeability of a molecule are-

A. Size - Small molecules can easily pass through the membrane than the large molecules.

B. Solubility - Non polar molecules ( eg. carbon dioxide) are lipid soluble in cell membrane , so they can easily pass through the membrane than the polar molecules (eg. glucose)