12 main components of cell membranes
lipids and proteins
24 main functions of cell membranes
1. physical isolation
2.regulation of exchange
3. communication
4. structural support
3membrane lipids create a .... barrier
hydrophobic
4what types of lipids are in the cell membrane
sphingolipids, phospholipids, and cholesterol
5the cell membrane is amphipathic. true or false
true. made up of hydrophobic and hydrophilic properties
6what are micelles?
droplets of phospholipids- hydrophilic heads on outside and hydrophobic tails point inward
7what are liposomes?
bilayer of phospholipids with an aqueous center
8phospholipids and cholesterol together form a...
lipid bilayer
9what does the lipid bilayer function as?
barrier bt cytosol and external environment
10phospholipid and carbohydrates form?
glycolipids
11carbohydrates and proteins form?
glycoproteins
123 functions of glycolipids and glycoproteins?
structural stability, cell recognition, and immune response
134 functions of membrane proteins?
structural, enzymes, membrane receptors, and transporters
142 types of transporter proteins
1. channel proteins
2. carrier proteins