Biology Quiz: Cell Membranes

Think you know all about cell membranes? Use this self-quiz to make sure you remember active transport, plasma membranes, lipid bilayer, and more. Continue reading

Plasma Membrane – Plant Cells

The plasma membrane is a selectively permeable membrane made up of a lipid bilayer and proteins surrounding the cell but inside the cell wall. Explore the process, structure, and function of a plant cell’s plasma membrane with this interactive tutorial. Continue reading

Plasma Membrane – Animal Cell

The plasma membrane is a selectively permeable membrane made up of a lipid bilayer and proteins surrounding the cell. Explore the process, structure, and function of an animal cell’s plasma membrane with this interactive tutorial. Continue reading

Lipid Bilayer

The lipid bilayer is an organic compound that is insoluble in water but soluble in nonpolar solvents, providing the basic impermeable structure of the membrane. Explore the process, structure, and function of an plasma membrane’s lipid bilayer with this interactive tutorial. Continue reading