Cell membrane

Cell membrane

passive transport

The movement of a substance through a cell membrane without using the cell energy

Diffusion

The movement of a substance from an are of higher concentration to an are of lower concentration.

Facilitate diffusion

When molecules pass through a cell membrane using special proteins called transport proteins.

osmosis

Te diffusion of water molecules only through a membrane.

active transport

The movement of water through a cell membrane only by using cell energy.

Endocytosis

A cell takes in a substance by surrounding it with cell membrane

Exocytosis

a cells vasicles release their contents outside the cell.

Facilitated diffusion

When molecules pass through the cell membrane using special proteins known as transport proteins.

Channel proteins

Create a hole in the membrane(door)

Carrier membrane

Carries large molecules using the cell ( you through door)