ACTUAL Exam Questions and CORRECT
Answers
Hal meets some friends at a local sports bar. After drinking several beers, Hal
picks a fight with someone that he thinks is giving him "dirty" looks. Normally very
mellow and calm, the alcohol has interfered with Hal's judgment, causing him to
lose control. Which theory best explains Hal's behavior?
a. Dawson's theory that people use alcohol as an excuse to act in ways
they truly desire
b. Jackson's theory that the nervous system is organized as a hierarchy
c. Anderson's theory that our behavior is linked more to physiological cues
than environmental cues
d. Friedrich's theory that the brain behaves differently when people are in
groups versus isolation - CORRECT ANSWER - b. Jackson's theory that the nervous
system is organized as a hierarchy
During the 20th century, which method led to a burst of knowledge about the
nervous system?
a. Radiography
b. Phrenography
c. Functional magnetic resonance imaging
d. Cranial formation diagnostic imaging - CORRECT ANSWER - c. Functional magnetic
resonance imaging
Maxwell is a participant in a research study aimed at understanding how the
brain responds to prolonged periods of isolation. After spending several hours in
a room alone, Maxwell undergoes a(n) ____ procedure; a method that measures
,the brain's electrical activity using electrodes placed on the scalp.
a. skin conductance response
b. electroencephalogram
c. magnetoencephalography
d. electrical stimulation - CORRECT ANSWER - b. electroencephalogram
Professor Laurent wants to understand how violence in the media affects
arousal in adolescents. What method should she use to monitor the arousal state
of adolescents while they view a news report of a violent crime?
a. Single cell recording
b. Magnetoencephalography
c. Skin conductance response
d. Electrical stimulation - CORRECT ANSWER - c. Skin conductance response
What distinguishes a neuron from most other cell types?
a. It can translate proteins.
b. It contains DNA.
c. Its nucleus is contained within the cell body.
d. It has specialized features for sending and receiving messages. - CORRECT
ANSWER - d. It has specialized features for sending and receiving messages.
If channels in the outer membrane of a neuron were blocked, what would be
the consequence?
a. Membrane fluidity would be impaired and the neuron would undergo
apoptosis.
b. Osmosis would be disrupted and the neuron would be unable to
communicate.
c. Many chemicals would not be able to move into and out of the neuron,
,disrupting communication.
d. The neuron would be deprived of oxygen and would undergo necrotic
death. - CORRECT ANSWER - c. Many chemicals would not be able to move into and
out of the neuron,
disrupting communication.
Enclosed within axons are ____, which are hollow spheres containing ____.
a. peroxisomes; myelin
b. chemical messages; synaptic vesicles
c. peroxisomes; chemical messengers
d. synaptic vesicles; chemical messengers - CORRECT ANSWER - d. synaptic vesicles;
chemical messengers
Marguerite, a first-year doctoral student, scrutinizes the neural tissue that she
prepared for study under her microscope. She knows from experience that the
areas that look gray have a high density of cell bodies, while the areas that look
white consist of large bundles of myelinated ____.
a. axons
b. dendrites
c. soma
d. nuclei - CORRECT ANSWER - a. axons
Following a spinal cord injury, formation of the ____ prevents neuronal
regeneration in the ____.
a. blood-brain barrier; central nervous system
b. blood-brain barrier; peripheral nervous system
c. scar tissue from glia; central nervous system
d. scar tissue from glia; peripheral nervous system - CORRECT ANSWER - c. scar tissue
from glia; central nervous system
, Juan, a graduate student in an electrophysiology lab, stimulates an isolated
neuron grown in a petri dish and measures its action potential. How will the
neuron respond to the firing of the action potential?
a. Its dendrites will retract.
b. Its dendrites will extend.
c. It will take up chemical messengers.
d. It will release chemical messengers. - CORRECT ANSWER - d. It will release
chemical messengers.
Elaine, a graduate student in a neuroscience department, is interested in
understanding the effects of popular herbal remedies on neuronal
communication. After growing neurons in a petri dish, she exposes the neurons
to several common herbal supplements. After performing a series of
electrophysiology experiments, she notes that one class of herbal supplements
caused the neurons to become depolarized. What does this mean?
a. The difference between the electrical charges of the extracellular and
intracellular recordings decreased, increasing the chances of an action
potential.
b. The difference between the electrical charges of the extracellular and
intracellular recordings decreased, decreasing the chances of an action
potential.
c. The difference between the electrical charges of the extracellular and
intracellular recordings increased, increasing the chances of an action
potential.
d. The difference between the elec - CORRECT ANSWER - a. The difference between
the electrical charges of the extracellular and
intracellular recordings decreased, increasing the chances of an action
potential.