test 2

Question 1

channels

Answer 1

fastest
go down the gradient
- ligand gated: hormone/neurotr.
- voltage gated

Question 2

transporters

Answer 2

no ATP required

Question 3

Na+/K+ pump

Answer 3

Na+/K+ ATPase

Question 4

cell junctions

Answer 4

1. adheres junction
2. demosome
3. tight junction
4. gap junction
5. neural chemical synapse

Question 5

Adherens junction

Answer 5

energizes cells
apical region
zomna adherens
cell adhesion: E-cadherin (Ca+ dependent, 5 domains for Ca+ binding)
STRONG
1. cis interaction
2. trans interaction
3. F-actin

Question 6

demosome

Answer 6

spot
strength
desmosleins
intermediate filaments
e.g. kerratin/filaments
hem desmosomes

Question 7

pemphigns

Answer 7

autoimmune against desmosomes

1. pemphigns vulgaris- 40-60yrs old, antibodies against desmogleins
2. pemphigens folices- most severe, antibodies against desmoglein 1