Question 1

The temporary inflow of positive ions through an axon membrane is the

Accepted Answer

A)   resting potential.
B)   refractory period.
C)   action potential.
D)   threshold.

Question 2

Botulin blocks the release of ACh.Botulin is best described as a(n)

Accepted Answer

A)   opiate.
B)   glutamate.
C)   antagonist.
D)   neurotransmitter.

Question 3

Curare is a paralyzing poison that functions as a(n)

Accepted Answer

A)   ACh agonist.
B)   GABA agonist.
C)   ACh antagonist.
D)   GABA antagonist.

Question 4

Agonists are chemical molecules that increase the activity of

Accepted Answer

A)   motor neurons.
B)   genes.
C)   synapses.
D)   neurotransmitters.

Question 5

The slowdown of neural communication in multiple sclerosis results from the degeneration of the

Accepted Answer

A)   amygdala.
B)   endorphins.
C)   myelin sheath.
D)   pituitary gland.

Question 6

If you lose a foot,the somatosensory cortex that received its input will begin to pick up signals from the formerly adjoined leg.This best illustrates the value of

Accepted Answer

A)   neurogenesis.
B)   lateralization.
C)   plasticity.
D)   hemispherectomy.

Question 7

Mathematical computations by a computer are faster than your quickest mathematical computations because the top speed of a neural impulse is about ________ times slower than the speed of electricity through the wired circuitry in a computer.

Accepted Answer

A)   3 hundred
B)   3 thousand
C)   3 hundred thousand
D)   3 million D

Question 8

The biochemical units of heredity that make up the chromosomes are called

Accepted Answer

A)   genes.
B)   genomes.
C)   epigenetic molecules.
D)   neurotransmitters.

Question 9

The hypothalamus influences the ________ to send messages to the ________.

Accepted Answer

A)   adrenal glands;pancreas
B)   pituitary;endocrine glands
C)   motor neurons;sensory neurons
D)   somatic nervous system;autonomic nervous system

Question 10

The division of the peripheral nervous system controlling the body's skeletal muscles is the

Accepted Answer

A)   motor nervous system.
B)   sympathetic nervous system.
C)   somatic nervous system.
D)   parasympathetic nervous system. C

Question 11

At the age of 22,Mrs.LaBlanc was less than 4 feet tall.Her short stature was probably influenced by the lack of a growth hormone produced by the

Accepted Answer

A)   pancreas.
B)   thyroid.
C)   adrenal gland.
D)   pituitary gland. D

Question 12

When the effect of one factor depends on the presence of another factor,outcomes are said to reflect

Accepted Answer

A)   an epigenetic mark.
B)   an interaction.
C)   natural selection
D)   adaptive flexibility

Question 13

Genetic influences on personality traits are most clearly highlighted by comparing ________ with ________.

Accepted Answer

A)   identical twins raised together;identical twins raised apart
B)   fraternal twins raised together;identical twins raised apart
C)   identical twins raised together;fraternal twins raised together
D)   fraternal twins raised apart;identical twins raised together

Question 14

The amygdala,hypothalamus,and hippocampus are part of the

Accepted Answer

A)   brainstem.
B)   limbic system.
C)   reticular formation.
D)   cerebral hemispheres.

Question 15

The left cerebral hemisphere is typically superior to the right in

Accepted Answer

A)   spatial reasoning.
B)   speech production.
C)   visual perception.
D)   musical abilities.

Question 16

People's reactions to our genetically influenced traits constitute part of our

Accepted Answer

A)   epigenetic marks.
B)   environment.
C)   genome.
D)   natural selection.

Question 17

Information is most quickly transmitted from one cerebral hemisphere to the other by the

Accepted Answer

A)   corpus callosum.
B)   motor cortex.
C)   association areas.
D)   somatosensory cortex.

Question 18

Some neurons enable you to grasp objects by relaying outgoing messages to the muscles in your arms and hands.These neurons are called

Accepted Answer

A)   interneurons.
B)   sensory neurons.
C)   neurotransmitters.
D)   motor neurons.

Question 19

An action potential registers an electrical charge of

Accepted Answer

A)   -70 millivolts.
B)   -55 millivolts.
C)   +40 millivolts.
D)   +70 millivolts.

Question 20

Mutations result from random errors in

Accepted Answer

A)   brain development.
B)   gene replication.
C)   natural selection.
D)   neural transmission.

Exam 2: The Biology of Behavior

The temporary inflow of positive ions through an axon membrane is the

Correct AnswerverifiedShow Answer

Botulin blocks the release of ACh.Botulin is best described as a(n)

Correct AnswerverifiedShow Answer

Curare is a paralyzing poison that functions as a(n)

Correct AnswerverifiedShow Answer

Agonists are chemical molecules that increase the activity of

Correct AnswerverifiedShow Answer

The slowdown of neural communication in multiple sclerosis results from the degeneration of the

Correct AnswerverifiedShow Answer

If you lose a foot,the somatosensory cortex that received its input will begin to pick up signals from the formerly adjoined leg.This best illustrates the value of

Correct AnswerverifiedShow Answer

Mathematical computations by a computer are faster than your quickest mathematical computations because the top speed of a neural impulse is about ________ times slower than the speed of electricity through the wired circuitry in a computer.

Correct AnswerverifiedD

The biochemical units of heredity that make up the chromosomes are called

Correct AnswerverifiedShow Answer

The hypothalamus influences the ________ to send messages to the ________.

Correct AnswerverifiedShow Answer

The division of the peripheral nervous system controlling the body's skeletal muscles is the

Correct AnswerverifiedC

At the age of 22,Mrs.LaBlanc was less than 4 feet tall.Her short stature was probably influenced by the lack of a growth hormone produced by the

Correct AnswerverifiedD

When the effect of one factor depends on the presence of another factor,outcomes are said to reflect

Correct AnswerverifiedShow Answer

Genetic influences on personality traits are most clearly highlighted by comparing ________ with ________.

Correct AnswerverifiedShow Answer

The amygdala,hypothalamus,and hippocampus are part of the

Correct AnswerverifiedShow Answer

The left cerebral hemisphere is typically superior to the right in

Correct AnswerverifiedShow Answer

People's reactions to our genetically influenced traits constitute part of our

Correct AnswerverifiedShow Answer

Information is most quickly transmitted from one cerebral hemisphere to the other by the

Correct AnswerverifiedShow Answer

Some neurons enable you to grasp objects by relaying outgoing messages to the muscles in your arms and hands.These neurons are called

Correct AnswerverifiedShow Answer

An action potential registers an electrical charge of

Correct AnswerverifiedShow Answer

Mutations result from random errors in

Correct AnswerverifiedShow Answer

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D

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The hypothalamus influences the to send messages to the .

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C

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Genetic influences on personality traits are most clearly highlighted by comparing with .

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