facilitated diffusion and active transport

Facilitated diffusion

The movement of specific particles across the cell membrane through transport proteins

Channel protein

Created hydrophilic channel that some molecules/ ions use as a tunnel through the membrane

Carrier protein

Binds its passenger, changes shape, releases its passenger on other side

Aquaporin

Where water is able t diffuse very rapidly into and out of certain cells due to the pressure of a protein channel called an aquaporin

Active transport

Where a cells must use energy to move solute against its concentration gradient (LOW TO HIGH) uses APT

Exocytosis

Used by cell to export bulky material like proteins and polysaccharides

Vesicle formed around material to be released

Endocytosis

Used by a cell to take IN large molecules

Forming a pocket of membrane around the materials being taken it

Phagocytosis

Engulfment of a food particle

PIN(T)ocytosis

Englufment of a liquid

Receptor-mediated endocytosis

Cells absorb molecules by using receptor proteins