Membrane

This lesson will give an in-depth look at Membranes and their Structure and Function.

Passive transport is a movement of biochemicals and other atomic or molecular substances across membranes

This lesson will give an in-depth look at the cell membrane and the structure. This lesson will discuss the traffic across cell membranes and Diffusion.

A biological membrane that separates the interior of all cells from the outside environment.

This video considers the resting membrane potential of a nerve cell. It looks at the concentration gradient of ions across the cell membrane. It also includes a brief description of the sodium potassium pump that maintains the resting membrane potential.

Phospholipids are a class of lipids that are a major component of all cell membranes as they can form lipid bilayers

Active transport is the movement of a substance across a cell membrane against its concentration gradient

This video examines the nerve cell and the creation of an action potential. It considers the movement of ions across the nerve cell membrane. It discusses resting membrane potential, depolarization and repolarization.