Bio 116 Exam 4 Questions and
Answers
Of these choices, neuronal communication between the brain and the muscles of the
leg is best conceptualized as _____.
a. the transcription of genes
b. chemical signaling
c. the transcription and translation of genes
d. electrical signaling
e. electrical and chemical signaling - ANSWER-e
The fundamental excitable cell in the nervous system is the _____.
a. nephron
b. dendrite
c. cell body
d. neuron
e. axon - ANSWER-d
As vertebrates evolved, the increasingly complex structure of the brain conferred
increasingly complex function, especially apparent in the _____.
a. medulla oblongata, which controls automatic functions
b. sleep-wake cycles of birds and mammals
c. brainstem, which in most vertebrates, controls homeostasis and basic bodily
function
d. forebrain, which is a small brain region that arises early in development
e. cerebral cortex, which is greatly expanded in humans, other primates, and
cetaceans - ANSWER-e
Motor cortex and somatosensory cortex are _____.
a. located on the left and right sides, respectively, of the cerebellum
b. organized in similar manner adjacent to each other, and are anatomically similar
from one person to the next
c. located in the hypothalamus and hippocampus, respectively
d. dispersed along the ventral and dorsal, respectively
e. located in the thalamus and hypothalamus, respectively - ANSWER-b
Parkinsonism is characterized by the loss of _____.
a. stem cells in the adult brain
b. serotonin neurons
, c. adrenergic neurons
d. dopaminergic neurons
e. cholinergic neurons - ANSWER-d
Which of these observations does NOT illustrate the developmental plasticity of the
human nervous system?
Select all that apply.
a. When activity at a synapse correlates with the activity of other synapses, that
synaptic connection is reinforced.
b. A person suffering from phantom limb pain following amputation may stop feeling
pain after viewing a reflection of the remaining limb in a mirrored box.
c. The brain may ignore certain stimuli and actively process other stimuli. -
ANSWER-c
Sensory transduction in the auditory system is much like transduction of _____.
a. sweet-tasting molecules binding to receptor proteins on the tongue
b. odorant molecules binding to receptor proteins on olfactory neurons
c. hormones binding to receptor proteins
d. visual stimuli by rods in the retina
e. mechanosensory stimuli - ANSWER-e
Sensory adaptation is apparent when _____.
a. a person is no longer aware of a heavy necklace that was put on earlier in the day
b. sitting in a hot room causes you to sweat
c. your initial dive into a cold swimming pool gives your skin "goose bumps"
d. individuals who live in cold climates have fewer cold receptors in their skin
e. water above a certain temperature stimulates pain receptors rather than
temperature receptors - ANSWER-a
The visual information used by honeybees includes these elements that are not
apparent to humans.
a. warmth and cations
b. electrical auras and infrared wavelengths
c. vibrating molecules and all ranges of the energy spectrum
d. the ability to distinguish ultraviolet radiation and 300 flashes of light per second
e. single photons and infrared radiation - ANSWER-d
The sense described as umami is one of _____.
a. flavors of oak barrels in wine
b. incoming nutrients at the level of the small intestine
c. olfactory essence of chocolate
d. savory and delicious sensation on the tongue
e. a burning sensation associated with chili peppers - ANSWER-d
Myosin heads have binding sites for _____.
Answers
Of these choices, neuronal communication between the brain and the muscles of the
leg is best conceptualized as _____.
a. the transcription of genes
b. chemical signaling
c. the transcription and translation of genes
d. electrical signaling
e. electrical and chemical signaling - ANSWER-e
The fundamental excitable cell in the nervous system is the _____.
a. nephron
b. dendrite
c. cell body
d. neuron
e. axon - ANSWER-d
As vertebrates evolved, the increasingly complex structure of the brain conferred
increasingly complex function, especially apparent in the _____.
a. medulla oblongata, which controls automatic functions
b. sleep-wake cycles of birds and mammals
c. brainstem, which in most vertebrates, controls homeostasis and basic bodily
function
d. forebrain, which is a small brain region that arises early in development
e. cerebral cortex, which is greatly expanded in humans, other primates, and
cetaceans - ANSWER-e
Motor cortex and somatosensory cortex are _____.
a. located on the left and right sides, respectively, of the cerebellum
b. organized in similar manner adjacent to each other, and are anatomically similar
from one person to the next
c. located in the hypothalamus and hippocampus, respectively
d. dispersed along the ventral and dorsal, respectively
e. located in the thalamus and hypothalamus, respectively - ANSWER-b
Parkinsonism is characterized by the loss of _____.
a. stem cells in the adult brain
b. serotonin neurons
, c. adrenergic neurons
d. dopaminergic neurons
e. cholinergic neurons - ANSWER-d
Which of these observations does NOT illustrate the developmental plasticity of the
human nervous system?
Select all that apply.
a. When activity at a synapse correlates with the activity of other synapses, that
synaptic connection is reinforced.
b. A person suffering from phantom limb pain following amputation may stop feeling
pain after viewing a reflection of the remaining limb in a mirrored box.
c. The brain may ignore certain stimuli and actively process other stimuli. -
ANSWER-c
Sensory transduction in the auditory system is much like transduction of _____.
a. sweet-tasting molecules binding to receptor proteins on the tongue
b. odorant molecules binding to receptor proteins on olfactory neurons
c. hormones binding to receptor proteins
d. visual stimuli by rods in the retina
e. mechanosensory stimuli - ANSWER-e
Sensory adaptation is apparent when _____.
a. a person is no longer aware of a heavy necklace that was put on earlier in the day
b. sitting in a hot room causes you to sweat
c. your initial dive into a cold swimming pool gives your skin "goose bumps"
d. individuals who live in cold climates have fewer cold receptors in their skin
e. water above a certain temperature stimulates pain receptors rather than
temperature receptors - ANSWER-a
The visual information used by honeybees includes these elements that are not
apparent to humans.
a. warmth and cations
b. electrical auras and infrared wavelengths
c. vibrating molecules and all ranges of the energy spectrum
d. the ability to distinguish ultraviolet radiation and 300 flashes of light per second
e. single photons and infrared radiation - ANSWER-d
The sense described as umami is one of _____.
a. flavors of oak barrels in wine
b. incoming nutrients at the level of the small intestine
c. olfactory essence of chocolate
d. savory and delicious sensation on the tongue
e. a burning sensation associated with chili peppers - ANSWER-d
Myosin heads have binding sites for _____.
