Question

An example of vesicle-mediated transport would be...
diffusion of oxygen

diffusion of lipid-soluable molecules across the membrane

the actions of the sodium-potassium pump

cell secretion by exocytosis

(I believe its the last one)

Answer 1

I believe you're right, exocytosis is a form of active transport. It would require the use of ATP to direct vesicles to fuse with the cell membrane and secrete wastes.

Answer 2

Meanwhile the Sodium-Potassium pump would not require the use of vesicles, so exocytosis has to be the right answer :)

Hope this helped!

Answer 3

cell secretion by exocytosis