Which of the lipid anchor modification(s) is (are) readily reversible with the help of thioesterases? 
a) Myristoylation. 
b) Palmitoylation. 
c) Glycosyl-phosphatidylinositolation (GPI). 
d) All of the above. 
e) None of the above.

Which of the following lipid-linked proteins are located primarily on the exterior surface of the membrane? 

a) Prenylated proteins.

b) Myristoylated proteins.

c) Plamitoylated proteins.

d) GPI-linked proteins. 

e) Farnesyl-linked proteins.

Prenylated proteins: 

a) Are integral membrane proteins. 

b) Contain amide linkages to straight-chain fatty acids. 

c) Contain ester linkages to straight-chain fatty acids. 

d) Are post-translationally modified proteins. 

e) None of the above.

Which of the following lipid-linked proteins are located primarily on the exterior surface of the membrane? 

a) Prenylated proteins.

b) Myristoylated proteins.

c) Plamitoylated proteins.

d) GPI-linked proteins. 

e) Farnesyl-linked proteins.