Transport protein that provides a tube like opening in the plasma membrane through which particles can diffuse

Channel proteins are a type of transport protein or permease that provides a tube like opening in the plasma membrane through which particles can diffuse through. This is primarily one distinction between the 2 mechanisms or processes of simple diffusion. Facilitated diffusion and simple or passive diffusion. The use of these specific proteins.

Only algae, oak trees, and bermuda grass produce atp by photosynthesis i am almost positive