WorksheetsCell Communication-AP Biology 5.5-5.6
Total questions: 12
Worksheet time: 6mins
Name
Class
Date
1.
What type of receptor would testosterone have?
a)
Intracellular
b)
Membrane
2.
Which of the following molecules can pass through the plasma membrane unaided?
a)
epinephrine
b)
insulin
c)
acetylcholine
d)
estrogen
3.
What activates G proteins?
a)
GDP
b)
ATP
c)
ADP
d)
GTP
4.
Which of the following is NOT an enzyme involved in regulation of signal transduction pathways?
a)
protein kinase
b)
lipase
c)
protein phosphatase
d)
GTPase
5.
Which of the following is NOT a hormone?
a)
gastrin
b)
secretin
c)
glucagon
d)
adenylyl cyclase
6.
What is one effect epinephrine has on liver cells?
a)
uptake glucose to store as glycogen
b)
break glycogen down to release glucose
c)
decreases blood vessel diameter
d)
decreases blood glucose levels
7.
What activates adenylyl cyclase?
a)
epinephrine binding to it
b)
an activated G protein
c)
cAMP
d)
a protein kinase
8.
Which of the following is an example of a second messenger?
a)
cAMP
b)
GTP
c)
insulin
d)
epinephrine
9.
What role do protein kinases serve?
a)
remove phosphate groups to deactivate enzymes
b)
inactivate cAMP to AMP
c)
add phosphate groups to activate enzyme's
d)
activate G proteins
10.
What molecule is cAMP made out of?
a)
ATP
b)
GTP
c)
glucose
d)
AMP
11.
What type of receptor does insulin bind to?
a)
G protein linked
b)
protein kinase
c)
ion channel
d)
intracellular
12.
What is the mechanism of protein kinases?
a)
activate proteins by dephosphorylating them
b)
activate proteins with cAMP
c)
change membrane potential
d)
activate proteins by phosphorylating them
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