What type of molecule makes up the bi-layer of a cell membrane?

Answer 1

This membrane is called the fluid mosaic model as it is a mixture of phospholipids, cholesterol, proteins and carbohydrates. Most of the membrane is composed of phospholipid molecules. These allow the membrane to be rather fluid.
Embedded in this membrane are proteins which give some structure to the membrane. The 3rd components are proteins or glycolipids. Cholesterol is also found in the membrane. It prevents lower temperatures from inhibiting the fluidity of the membrane and prevents higher temperatures from increasing fluidity.

Answer 2

Phospholipids primarily make up the bilayer of a cell membrane, with the hydrophilic heads facing outward towards the aqueous environment and the hydrophobic tails pointing inward, creating a barrier that separates the interior and exterior of the cell.

Answer 3

The most prevalent organic molecule in the bilayer is phospholipid.

Answer 4

Phospholipids lay to the foundation. They are type of lipids.

Answer 5

Phospholipids build up it. They are type of lipids