Endoplasmic Reticulum

Question 1

Single pass transmembrane proteins are often…

a. porins

b. transiently associated with the membrane

c. receptor proteins

d. formed from entirely hydrophilic residues

Answer 1

c. receptor proteins

Question 2

The signal-sequence binding pocket on the ER signal recognition particle is lined with….

a. serine

b. methionine

c. RNA

d. tyrosine

e. phosphatidylcholine

Answer 2

b. methionine

Question 3

Preventing elongation factors from interacting with the large ribosomal subunit is called….

Answer 3

Elongation arrest

Question 4

Homotetramer means all of the domains are …… and there are ……. domains in total.

Answer 4

Alike domains; 4 domains

Question 5

FepA transports which of these across the plasma membrane?

a. water

b. iron

c. lysozymes

d. calcium

e. siderophores

Answer 5

Transports iron and siderophores

Question 6

A tyrosine kinase transfers a _______ group from ___ to a ________ residue.

Answer 6

Transfers phosphate group from ATP to a tyrosine residue