Download - Grade 11 - Cell Membran and Transport
awan
Singer & Nicholson (1972)Fluid mosaic model of cell membrane
protein expressed that
-Each protein spread and tucked or immersed in a phospholipid bilayer
-Molecules of protein and fat that is not static, but constantly moving
- Fat molecules as "liquid" on it and inside there are protein molecules that are "swimming"
Attracted to water
repelled by water
protein
integral
periferal
Can be found in the area between the membrane and have attached to the hydrophobic membrane and hydrophilic regions prominent of the two bilayer surfaces. Serves to substances that enter the larger size
Can be found both inside and outside surfaces membrane that forms a bond with the surface membrane
phospholipids
cholesterol
glycolipids
protein
glycoproteins
For interactions as recognition signals between cells
Used as an identifier by the immune system
Channel where the passage of a variety of materials on the plasma membrane
were attached proteins and to assist the process of vesicle fusion and endocytosis
regulate membrane fluidity and stability