Question 1

A series of action potentials occurring down the length of an axon are referred to as:

Accepted Answer

A)   nodes of Ranvier.
B)   propagation of actions potentials.
C)   firing rate.
D)   the all-or-none law.E) B) and D)
F) C) and D)

Question 2

A drug that inhibited acetylcholinesterase would:

Accepted Answer

A)   reduce levels of dopamine.
B)   prevent a decrease in levels of acetylcholine.
C)   increase levels of norepinephrine.
D)   decrease activation of cholinergic receptors.E) B) and C)
F) All of the above

Question 3

The _______________ states that the magnitude of an action potential is independent from the magnitude of potential change that elicited the action potential.

Accepted Answer

A)   concentration gradient principle
B)   principle of electrostatic attraction
C)   refractory period
D)   all-or-none lawE) All of the above
F) B) and D)

Question 4

All of the following describe conditions that facilitate an action potential except:

Accepted Answer

A)   a resting potential precedes an action potential.
B)   sodium channels open.
C)   sodium-potassium pump activity decreases.
D)   the local potential becomes depolarized.E) A) and D)
F) A) and C)

Question 5

A neurotransmitter receptor is an example of a ligand-gated receptor.

Accepted Answer

A) True 
 B)False

Question 6

Name and describe the two pharmacological strategies for treating Alzheimer's disease that were described in the book.

Accepted Answer

By inhibiting acetylcholinesterase,acety...

Question 7

The sequence of events in chemical neurotransmission normally occurs in this order:

Accepted Answer

A)   Storage, release, bind to receptors, synthesis.
B)   Synthesis, storage, release, bind to receptors.
C)   Release, synthesis, storage, bind to receptors.
D)   Bind to receptors, release, storage, synthesis.E) None of the above
F) A) and B)

Question 8

You are a neuroscientist attempting to determine what type of neurotransmitter each releases based on the enzymes found in the neurons.You have so far determined that all of the neurons contain the enzyme tyrosine hydroxylase.Determine which neurotransmitters these neurons could release and suggest how this would be accomplished.

Accepted Answer

The researcher should test the neurons f...

Question 9

Tyrosine hydroxylase serves as the _____________ step for dopamine.

Accepted Answer

The answer of Tyrosine hydroxylase serves as the _____________ step...

Question 10

Potassium ions will exit a neuron during a resting potential through open channels due to:

Accepted Answer

A)   electrostatic attraction.
B)   a concentration gradient.
C)   sodium-potassium pump activity.
D)   hyperpolarization.E) B) and C)
F) A) and D)

Question 11

Large molecule neurotransmitters are stored in vesicles in a neuron's soma.

Accepted Answer

A) True 
 B)False

Question 12

If a pharmacologist designed a drug that prevented the activation of G-proteins,which of the following would occur if a neurotransmitter binded to a metabotropic receptor?

Accepted Answer

A)   Effector enzymes attached to the receptor would still be activated.
B)   No effects would occur.
C)   A second messenger would attach to the receptor.
D)   Gene expression would increase.E) A) and B)
F) None of the above

Question 13

The following statements for serotonin are true except:

Accepted Answer

A)   Serotonin has a different synthesis pathway than norepinephine.
B)   Serotonin transported into vesicles through a different vesicular transporter than dopamine.
C)   MAO is a catabolic enzyme for serotonin.
D)   Reuptake for serotonin occurs via the serotonin transporter.E) A) and D)
F) B) and D)

Question 14

At the beginning of the refractory period,why does the charge within a neuron from positive to negative?

Accepted Answer

A)   An inhibitory postsynaptic potential is produced.
B)   Sodium channels open allowing sodium to leave the neuron.
C)   Potassium channels open allowing potassium to leave the neuron.
D)   The concentration of negatively charged proteins increases.E) B) and C)
F) A) and B)

Question 15

All of the following are examples of functions of a metabotropic receptor except:

Accepted Answer

A)   gene expression and protein synthesis may occur after a neurotransmitter binds to the receptor.
B)   a G-protein acts on ions channels or effector enzymes after a neurotransmitter bind to the receptor.
C)   a G-protein may act on an effector enzyme that may then activate a second messenger.
D)   an ion channel attached to the receptor will open when a neurotransmitter binds to the receptor.E) None of the above
F) All of the above

Question 16

Activating a GABAA postsynaptic receptor will cause a(n)_____________.

Accepted Answer

inhibitory...

Question 17

After the activation of a G-protein,the sequence of signalling events consists of:

Accepted Answer

A)   effector enzyme, second messenger, protein kinase, substrate protein.
B)   second messenger, effector enzyme, protein kinase substrate protein.
C)   effector enzyme, protein kinase, second messenger, substrate protein.
D)   substrate protein, protein kinase, second messenger, effector enzyme.E) B) and C)
F) A) and D)

Question 18

A compound that blocked vesicular transporters would likely:

Accepted Answer

A)   increase the activity of postsynaptic receptors.
B)   cause a decrease in calcium influx.
C)   prevent reuptake.
D)   prevent the storage of neurotransmitters in vesicles.E) A) and B)
F) A) and D)

Question 19

Ionotropic receptors are similar to voltage-gated ion channels except that:

Accepted Answer

A)   the ion channels are opened when a neurotransmitters binds to the receptor.
B)   there is not an ion channel.
C)   hyperpolization opens the receptor channels.
D)   neurotransmitters pass through the channel instead of ions.E) A) and B)
F) A) and C)

Question 20

Describe the ways that hormones differ from neurotransmitters.

Accepted Answer

Hormones have widespread effects on targ...

Exam 3: Neurotransmission

Large molecule neurotransmitters are stored in vesicles in a neuron's soma.

Correct Answer
verified

Correct Answer
verified
The researcher should test the neurons f...
View Answer

The sequence of events in chemical neurotransmission normally occurs in this order:

Correct Answer
verified

A compound that blocked vesicular transporters would likely:

Correct Answer
verified

At the beginning of the refractory period,why does the charge within a neuron from positive to negative?

Correct Answer
verified

A drug that inhibited acetylcholinesterase would:

Correct Answer
verified

If a pharmacologist designed a drug that prevented the activation of G-proteins,which of the following would occur if a neurotransmitter binded to a metabotropic receptor?

Correct Answer
verified

After the activation of a G-protein,the sequence of signalling events consists of:

Correct Answer
verified

Describe the ways that hormones differ from neurotransmitters.

Correct Answer
verified
Hormones have widespread effects on targ...
View Answer

Tyrosine hydroxylase serves as the _____________ step for dopamine.

Correct Answer
verified

The following statements for serotonin are true except:

Correct Answer
verified

Name and describe the two pharmacological strategies for treating Alzheimer's disease that were described in the book.

Correct Answer
verified
By inhibiting acetylcholinesterase,acety...
View Answer

Activating a GABAA postsynaptic receptor will cause a(n)_____________.

Correct Answer
verified
inhibitory...
View Answer

A series of action potentials occurring down the length of an axon are referred to as:

Correct Answer
verified

All of the following describe conditions that facilitate an action potential except:

Correct Answer
verified

Ionotropic receptors are similar to voltage-gated ion channels except that:

Correct Answer
verified

All of the following are examples of functions of a metabotropic receptor except:

Correct Answer
verified

The _______________ states that the magnitude of an action potential is independent from the magnitude of potential change that elicited the action potential.

Correct Answer
verified

Potassium ions will exit a neuron during a resting potential through open channels due to:

Correct Answer
verified

A neurotransmitter receptor is an example of a ligand-gated receptor.

Correct Answer
verified

Exam 3: Neurotransmission

Large molecule neurotransmitters are stored in vesicles in a neuron's soma.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedThe researcher should test the neurons f...View AnswerShow Answer

The sequence of events in chemical neurotransmission normally occurs in this order:

Correct AnswerverifiedShow Answer

A compound that blocked vesicular transporters would likely:

Correct AnswerverifiedShow Answer

At the beginning of the refractory period,why does the charge within a neuron from positive to negative?

Correct AnswerverifiedShow Answer

A drug that inhibited acetylcholinesterase would:

Correct AnswerverifiedShow Answer

If a pharmacologist designed a drug that prevented the activation of G-proteins,which of the following would occur if a neurotransmitter binded to a metabotropic receptor?

Correct AnswerverifiedShow Answer

After the activation of a G-protein,the sequence of signalling events consists of:

Correct AnswerverifiedShow Answer

Describe the ways that hormones differ from neurotransmitters.

Correct AnswerverifiedHormones have widespread effects on targ...View AnswerShow Answer

Tyrosine hydroxylase serves as the _____________ step for dopamine.

Correct AnswerverifiedShow Answer

The following statements for serotonin are true except:

Correct AnswerverifiedShow Answer

Name and describe the two pharmacological strategies for treating Alzheimer's disease that were described in the book.

Correct AnswerverifiedBy inhibiting acetylcholinesterase,acety...View AnswerShow Answer

Activating a GABAA postsynaptic receptor will cause a(n)_____________.

Correct Answerverifiedinhibitory...View AnswerShow Answer

A series of action potentials occurring down the length of an axon are referred to as:

Correct AnswerverifiedShow Answer

All of the following describe conditions that facilitate an action potential except:

Correct AnswerverifiedShow Answer

Ionotropic receptors are similar to voltage-gated ion channels except that:

Correct AnswerverifiedShow Answer

All of the following are examples of functions of a metabotropic receptor except:

Correct AnswerverifiedShow Answer

The _______________ states that the magnitude of an action potential is independent from the magnitude of potential change that elicited the action potential.

Correct AnswerverifiedShow Answer

Potassium ions will exit a neuron during a resting potential through open channels due to:

Correct AnswerverifiedShow Answer

A neurotransmitter receptor is an example of a ligand-gated receptor.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
The researcher should test the neurons f...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Hormones have widespread effects on targ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
By inhibiting acetylcholinesterase,acety...
View Answer

Correct Answer
verified
inhibitory...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified