Old Questions Part 2
1.
A cotransporter which pumps two molecules in the same direction 10. Ion channels can open in response to which of the following types
is called a:
of stimulus?
a.
b.
c.
d.
2.
Antiporter
Coporter
Symporter
Biporter
One of the few polar molecules which can pass through the lipid
bilayer is:
Na+
H2O
ClCa2+
a.
b.
c.
d.
3.
Which of the following is a form of long distance cell-to-cell
communication?
a.
b.
c.
d.
4.
a.
b.
c.
d.
autocrines
paracrines
neurohormones
none of the above
Neurons which bring information to the nervous system are called
or sensory neurons
a.
b.
c.
d.
e.
Efferent
Interneurons
Collaterals
Afferent
Ganglions
3
2
5.
Axon:
6.
Dendrite:
7.
Axon hillock:
8.
The gap between two neurons is called the:
a.
b.
c.
d.
e.
9.
Gap junction
Synapse
Neuroeffector junction
Tight junction
All of the above
Two types of signals are called an action potential and a:
a.
b.
c.
d.
e.
11. Which of the following is not a type of neurotransmitter?
a.
b.
c.
d.
e.
nitric oxide
amino acids
ATP
Acetylcholine
All of the above are types of neurotransmitters
12. Which of the following is a type of sensing receptor?
a.
b.
c.
d.
e.
chemo
mechano
thermo
photon
all of the above
13. The concentration of Na+ is generally higher:
a.
b.
c.
d.
e.
On the inside of the cell
Is the same on both sides of the cell
On the outside of the cell
In between the lipid bilayer
In the cytosol
14. A chemical which opposes a natural signal is called a(n):
Write down the number
corresponding to the correct
location on the cell.
1
mechanical
chemical
changes in membrane potential
all of the above
Resting potential
Membrane potential
Graded potential
Threshold potential
All of the above
a.
b.
c.
d.
Proponent
Agonist
Opponent
Antagonist
15. Which of the following is the name for the type of neuron that
brings information into the nervous system?
a.
b.
c.
afferent
efferent
interneurons
16. Which types of neurons perform the “calculations” on the
information garnered from the environment?
a.
b.
c.
d.
afferent
dendrites
interneurons
efferent
17. Action potentials are generated in the:
a.
b.
c.
d.
dendrite
synaptic cleft
glia
axon hillock
18. True or False: communication between two neurons is by
electrical means.
19. True or False: The brain and the spinal cord make up the CNS
(central nervous. system)
20. The main type of glia found in the PNS is the:
a.
b.
c.
d.
astrocytes
microglia
oligodendrocytes
Schwann cells