Active and passive transport of solutes across a membrane typically differ in which of the following ways? ?

a,b,c,are all correct

a)Active transport is usually against the concentration gradient of the solute, whereas passive transport is always down the concentration gradient of the solute.

-Active transport is is going from Low Concentration to High Concentration




b)Active transport always involves the utilization of cellular energy, whereas passive transport does not require cellular energy.

- Active transport requires energy, passive trasport does not




c)Active transport always requires the use of transport proteins, but passive transport can sometimes be accomplished without a protein.

- Active transport requires a Carrier Protein.

Facillitated Diffusion-  (Which is passive) Uses a carrier or a Channel protein

Diffusion- (which is passive)  Does not need a protein.



Hope it helps.