1.3 components + functions of the plasma membrane Flashcards
1
Q
name 5 main components of plasma membrane
A
- phospholipids
- protein channel
- protein carrier
- glycoproteins
- glycolipids
- cholesterol
2
Q
what is the function of phospholipids
A
- form fluid bilayer that allows endocytosis + exocytosis to occur
3
Q
protein channel function
A
- intrinsic protein
- usually tube like structure, transport molecules too large (or hydrophobic) to pass through bilayer
4
Q
protein carrier function
A
- usually intrinsic
- active sites specific to certain molecules, molecules then transported through membrane
5
Q
glycoprotein function
A
- extrinsic proteins which have been glycosylated
- cell receptor sites (for hormones+drugs+immune system)
6
Q
glycolipid function
A
cell signalling
7
Q
Cholesterol function
A
- steroid
- provides stability, reduces fluidity of membrane
8
Q
A
