Transport in Cells - Diffusion -

simple diffusion  Facilitated diffusion Facilitated diffusion is the process of spontaneous passive There are 4 types of passive transport in total: simple diffusion, facilitated diffusion, filtration

Transmembrane Proteins Facilitated diffusion is a type of passive transport in which substances move across the cell membrane through helper proteins Because Simple diffusion allows the direct transport of molecules across the cell membrane In contrast, facilitated diffusion occurs via transmembrane proteins like

This is called internal respiration The actual exchange of gases occurs due to simple diffusion, which means that energy is not required to move oxygen or 3:45 Facilitated diffusion 4:22 Some factors that can affect rate of diffusion 6:35 Why care about