Transmembrane proteins, golgi and COP

Question 1

How are transmembrane proteins integrated into a membrane?

Answer 1

Proteins with a signal anchor are threaded through a channel in the ER until its released into the membrane

Question 2

What are the main elements of the golgi aparatus?

Answer 2

1) Cis Golgi Network
2) Medial golgi network
3)Trans Golgi Network

Question 3

cisternae

Answer 3

layers/steps of the golgi aparatus

Question 4

What is the role of the CGN

Answer 4

Decides if the vesicle goes back to ER or continues to next golgi station

Question 5

Whats the role of the TGN

Answer 5

Sorts into different vesicles and begins vesicular transport

Question 6

What are the endocytic pathways

Answer 6

Can to back to ER lumen or return to golgi aparatus for further modification

Question 7

Material moves from ER to golgi to other compartments in the ……. direction

Answer 7

proximal to distal

Question 8

What do coat proteins do? [2]

Answer 8

1) Facilitate transport
2) coatomers attach to membrane and pinch off a vesicle

Question 9

What does COPII do

Answer 9

Forward transport— from ER to Golgi

Question 10

What does COPI do

Answer 10

retrograde transport—golgi to ER