Like a mosaic, the cell membrane is a complex structure made up of many different parts, such as proteins, phospholipids, and cholesterol. The relative amounts of these components vary from ...

In the model, this is the grape. Cell membrane close cell membraneThis surrounds the outside of animal cells and controls what can enter and exit it.: In the model, this is the balloon.

So, if the cell membrane were a lipid ... Thereafter, the idea of a lipid bilayer became the basis for future models of membrane structure. (Sadava 1993). When the use of electron microscopy ...