AnswersQ5 Biology 2014The Endocrine and Exocrine Systems

Nerve Conduction Answers

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1
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Which list of words describes an action potential?

A
all or none, neurotransmitters, membrane potential
B
membrane potential, neurotransmitters, electrical signals
C
electrical signals, all or none, neurotransmitters
D
all or none, membrane potential, electrical signals
2
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Which function is specific to the neuron?

A
It generates electrochemical signals so that the body can react to stimuli.
B
It produces antibodies to destroy pathogens for protection purposes.
C
It breaks down chemical substances into a form that is usable by the body.
D
It delivers oxygen to the cells of the body for metabolic processes.
3

Which best describes an axon with myelin and an axon without myelin?

A
Impulse transmission would be faster in the axon with myelin.
B
Impulse transmission would be slower in the axon with myelin.
C
An "all" response would occur in the axon with myelin.
D
A "no" response would occur in the axon with myelin.
4

Which statement describes the synapse?

A
It is the gap between neurons that ensures that information travels in multiple directions.
B
It is the gap between neurons that ensures that information travels in one direction only.
C
It is the part of the neuron that carries information through electrical impulses to the cell body.
D
It is the part of the neuron that carries information through chemical impulses to the cell body.
6

What new experimental method was used after a team of scientists developed a hypothesis involving mirror neurons?

A
MRI “monkey see monkey do” tests on monkeys performing tasks
B
double blind placebo experiments
C
MRI “monkey see monkey do” tests on humans performing tasks
D
placebo experiments
7

Which best describes neurons?

A
Like all eukaryotic cells, neurons do not have the ability to regulate what substances go in and out of the cell.
B
Like all eukaryotic cells, neurons have a nucleus that controls the activities of the cell.
C
Unlike other eukaryotic cells, neurons cannot produce energy that can be used to carry out the life-sustaining processes of the cell.
D
Unlike other eukaryotic cells, neurons have a membrane that surrounds the cell.
9

Which words list the correct order of activated neurons in a reflex arc?

A
effector, receptor, sensory, interneuron, motor
B
receptor, sensory, interneuron, motor, effector
C
effector, motor, interneuron, sensory, receptor
D
interneuron, sensory, receptor, effector, motor

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Nerve Conduction Answers — Q5 Biology 2014