Which feature of a membrane describes whether molecules can cross the
membrane?
o
a. permeability
o
b. polarity
c. construction
o
d. thickness

A

Explanation:

If it's a permeable membrane then it will allow certain molecules in. If it's impermeable then it won't allow molecules in. Therefore it is the deciding feature of whether something can go into the membrane.

not sure if this what   you'r looking for would be percent composition

not sure if this is what you'r looking for nnew= nold