Psychology 103 - Physiological Psychology » Spring 2022 » Chapter 4 Practice Quiz 2
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Psychology 103 - Physiological Psychology ] course for $25 USD.
Existing Quiz Clients Login here
Question #1
Another word for "integration" is
A.
"firing."
B.
"activation."
C.
"summation."
D.
"all-or-none."
E.
"release."
Question #2
Action potentials are produced by the
A.
opening of ligand-activated potassium channels.
B.
opening of voltage-activated sodium channels.
C.
closing of voltage-activated calcium channels.
D.
closing of ligand-activated potassium channels.
E.
closing of ligand-activated chloride channels.
Question #3
During an action potential, the change in membrane potential associated with the influx of sodium ions triggers the
A.
opening of potassium channels.
B.
closing of potassium channels.
C.
closing of chloride channels.
D.
opening of chloride channels.
E.
opening of sodium channels.
Question #4
The end of the rising phase of an action potential occurs when the
A.
sodium channels open.
B.
potassium channels close.
C.
potassium channels open.
D.
sodium channels close.
Question #5
After a neuron fires, the resting potential is re-established by the
A.
random movement of ions.
B.
electrostatic gradient.
C.
sodium-potassium pump.
D.
EPSPs.
E.
refractory period.
Question #6
The brief period of time immediately after the initiation of an action potential, when it is absolutely impossible to initiate another one in the same neuron, is called the
A.
IPSP.
B.
relative refractory period.
C.
absolute refractory period.
D.
threshold of inhibition.
E.
threshold of excitation.
Question #7
The wave of absolute refractoriness that follows an action potential
A.
produces a second, negative action potential.
B.
keeps the action potential from spreading actively back along an axon towards the cell body.
C.
increases the speed of axonal transmission.
D.
increases the firing rate.
E.
produces saltatory conduction.
Question #8
Neurons do not normally fire more than 1,000 times per second because
A.
the sodium-potassium pump cannot repolarize the cell in less than 1 millisecond.
B.
the relative refractory period is typically about 1 millisecond.
C.
higher rates over excite the neuron.
D.
the total refractory period is typically about 1 millisecond.
E.
the absolute refractory period is typically about 1 millisecond.
Question #9
Active conduction is to passive conduction as
A.
EPSPs are to IPSPs.
B.
excitation is to inhibition.
C.
APs are to EPSPs.
D.
IPSPs are to APs.
E.
EPSPs are to APs.
Question #10
The conduction of an action potential along any axon is mediated by the action of
A.
ligand-activated ion channels.
B.
voltage-activated ion channels.
C.
nodes of Ranvier.
D.
myelin.
E.
EPSPs.
Question #11
Action potentials can be conducted
A.
antidromically.
B.
orthodromically.
C.
actively.
D.
passively.
E.
all of these
Question #12
In large myelinated human motor neurons, impulses travel at about
A.
1 meter per second.
B.
100 meters per second.
C.
186,000 miles per second.
D.
60 meters per second.
E.
the speed of light.
Question #13
Neurons without axons do not
A.
generate action potentials.
B.
exist.
C.
exist in mammals.
D.
exist in humans.
E.
produce inhibition.
Question #14
Axodendritic synapses
A.
always terminate on dendrites.
B.
are rare.
C.
sometimes terminate on cell bodies.
D.
often terminate on the axon hillock.
Question #15
Neurotransmitters are often stored in
A.
synaptic vesicles.
B.
aluminum foil.
C.
the synaptic cleft.
D.
ribosomes.
E.
nodes of Ranvier.
Question #16
Neurotransmitter molecules are often packaged in vesicles by
A.
buttons.
B.
microtubules.
C.
peptides.
D.
ribosomes.
E.
Golgi complexes.
Question #17
Neuropeptides are synthesized in the cell body on
A.
microtubules.
B.
the Golgi complex.
C.
ribosomes.
D.
mitochondria.
E.
vesicles.
Question #18
Peptide neurotransmitters (i.e., neuropeptides) are synthesized in the cell body and
A.
transported along the axons to the nodes of Ranvier.
B.
stored in the Golgi complex until they are broken down.
C.
transported in vesicles along microtubules to the buttons.
D.
stored in ribosomes with small-molecule neurotransmitters.
E.
released by the Golgi complex into the synapse.
Question #19
Many buttons contain two sizes of vesicles; the larger ones typically contain
A.
neuropeptides.
B.
dopamine.
C.
glutamate.
D.
acetylcholine.
E.
small-molecule neurotransmitters.
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Psychology 103 - Physiological Psychology ] course for $25 USD.
Existing Quiz Clients Login here