Summary
An overview of how cells move materials across membranes, distinguishing between passive and active transport methods.
Transport Across Cell Membranes by Bozeman Science
Highlights
Core Concepts of Membrane Transport
Paul Andersen explains that cellular transport is categorized into two main types: passive and active. Passive transport, such as diffusion, allows particles to move along a concentration gradient without the expenditure of energy. In contrast, active transport requires energy because it involves moving particles against their concentration gradient.