Topic 66 ( The Cell Membrane) Flashcards
0
Q
What are the components of phosphatidic acid? (3)
A
- Glycerol
- 2 fatty acids
- Phosphoric Acid
1
Q
What is a membrane composed of (2)?
A
Lipid bilayer and proteins
2
Q
How can we classify membrane proteins according to their attachment to the membrane (3)?
A
- Peripheral proteins
- Integral proteins
- Transmembrane proteins
3
Q
What is the name of the membrane proteins which cross the lipid bilayer?
A
Transmembrane proteins
4
Q
What is the name of the artificial vesicles made of phospholipid bilayers?
A
Liposomes
5
Q
What are caveolae?
A
Stable membrane invaginations with specific composition and structure
6
Q
Name two transmembrane proteins!
A
- Channel proteins
- Ion pumps
7
Q
What is the effect of the oleic acid content of phospholipid on the membrane fluidity?
A
The higher the oleic acid content, the higher the fluidity
8
Q
Name 3 of the major functions of the cell membrane!
A
- Selective transport
- Cell signaling
- Cell-cell interactions
