Which form of cell transport allows small molecules to move from an area of higher concentration to an area of lower concentration without energy being required from the cell?
a. osmosis
b. pinocytosis
c. phagocytosis
d. simple diffusion

I think the correct answer from the choices listed above is option D. Simple diffusion is the cell transport that allows small molecules to move from an area of higher concentration to an area of lower concentration without energy being required from the cell.

Confused on question what should we be answering