Chapter 5: Membrane Transport & Cell Signaling Flashcards
0
Q
Cellular membranes are…
A
Fluid mosaics of lipids an proteins
1
Q
Selective permeability
A
Controls traffic in and out of the plasma membrane
2
Q
Phospholipid is a ——- molecule
A
Amphipathic
3
Q
What does steroid cholesterol help with in animal cells ?
A
Cholesterol reduces movement in moderate heat by
But at low temp hinders solidification of phospholipid
4
Q
Two major populations of membrane proteins ?
A
Integral proteins- go through both sides
Peripheral proteins-not embedded in lipid bilateral
5
Q
Membrane proteins &lipids are synthesized in the?
A
ER
6
Q
Transmembrane is a ?
A
Integral protein
7
Q
Carbohydrates are added to transmembrane forming a?
A
Glycoprotein
8
Q
Some transport proteins can be called ?
A
Channel proteins
