Question

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?

Answer 1

The random movement of molecules from an area of high concentration to an area of low concentration, type of passive cellular transport, small molecules like oxygen, carbon dioxide diffuse through lipids in the cell wall, molecules must be smaller than pores (openings) in the membrane. Answer: Diffusion

Answer 2

Salutations!

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?

Simple diffusion  is the form of 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.

Hope I helped!