Are the solutes moving with the
gradient or against the gradient?
Along: From
high to low
concentration
A
Can the solutes cross the
plasma membrane?
Yes
non-polar
hydrophobic
lipophilic
No
polar
hydrophilic
lipophobic
Against: From
low to high
concentration
B
C
D
Match the letter on the diagram to the
requirements for cell transport in the table
below.
A, B, C, D
Definition
Word
Requires both, energy
fill in blank
and a carrier protein
Doesn't require energy
but requires a carrier
fill in blank
protein
Doesn't require energy
and doesn't need a
carrier protein
fill in blank