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