Overview
Facilitated diffusion is a crucial biological process that allows specific molecules to cross cell membranes without the expenditure of energy. It relies on transport proteins that create pathways for substances that cannot easily diffuse through the lipid bilayer. This process is essential for main...
Key Terms
Example: Perfume spreading in a room.
Example: More sugar in one cup of water than another.
Example: The skin of a balloon.
Example: Glucose transporters in cells.
Example: Oxygen entering cells.
Example: Sodium-potassium pump in nerve cells.
Related Topics
Key Concepts
Transport proteinsConcentration gradientCell membranePassive transport