FrontalCortex, Inc. is a non-profit corporation dedicated to neurology education.

Dopamine 01

Topic: Pharmacology

Created on Saturday, October 18 2008 by jdmiles

Last modified on Saturday, October 18 2008.

From which of the following is dopamine synthesized?

 
        A) Serine
 
        B) Cysteine
 
        C) Tyrosine
 
        D) Tryptophan
 
        E) Glutamic acid
 

 


Back to the question = Go back to the top of the page.
See another question like this one = Reload a different version of this question ().
Click here for a random question = Load a random question from the database.
Clone this question = Use this question as a template to create a totally NEW question.
Rate this question = Enter detailed rating for this question!
Average user rating for this question = 4 = How users like you have rated this question.
This question was created on October 18, 2008 by jdmiles.
This question was last modified on October 18, 2008.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS




A) Serine

This answer is incorrect.


Dopamine, epinephrine, and norepinephrine (the catecholamine neurotransmitters) are all derived from tyrosine.  (See References)

Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this questionAverage user rating for this question = 4
Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 




B) Cysteine

This answer is incorrect.


Dopamine, epinephrine, and norepinephrine (the catecholamine neurotransmitters) are all derived from tyrosine.  (See References)

Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this questionAverage user rating for this question = 4
Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 




C) Tyrosine

This answer is correct.


Dopamine, epinephrine, and norepinephrine (the catecholamine neurotransmitters) are all derived from tyrosine.
The first (and rate-limiting) step in the synthesis of dopamine is the conversion of tyrosine into L-DOPA by tyrosine hydroxylase.
Then, L-DOPA is converted into Dopamine by DOPA decarboxylase.  (See References)

Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this questionAverage user rating for this question = 4
Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 




D) Tryptophan

This answer is incorrect.


Dopamine, epinephrine, and norepinephrine (the catecholamine neurotransmitters) are all derived from tyrosine.  (See References)

Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this questionAverage user rating for this question = 4
Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 




E) Glutamic acid

This answer is incorrect.


Dopamine, epinephrine, and norepinephrine (the catecholamine neurotransmitters) are all derived from tyrosine.  (See References)

Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this questionAverage user rating for this question = 4
Please log in if you want to rate questions.

 

 

 

 

References:

1. Kandel, E.R., Schwartz, J.H., and Jessel, T.M. (2000). Principles of Neural Science, 4th ed. McGraw-Hill, New York. (ISBN:0838577016)Advertising:
Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this questionAverage user rating for this question = 4
Please log in if you want to rate questions.

 

FrontalCortex.com -- Neurology Review Questions -- Neurology Boards -- Board Review -- Residency Inservice Training Exam -- RITE Exam Review
pharmacology
Dopamine 01
Question ID: 101808175
Question written by J. Douglas Miles, (C) 2006-2009, all rights reserved.
Created: 10/18/2008
Modified: 10/18/2008
Estimated Permutations: 1794000

User Comments About This Question:

2 user entries
 

kentjr
pharmacology Comment Feb 21, 2014 @ 12:41
What do you think about creating a Resident-level bank and a Med-student level bank?  Questions like this one should be for med students.  important ? though.  awesome website.


 

jdmiles
pharmacology Re: Comment Apr 11, 2014 @ 20:19

Thanks.  That's an excellent idea.

 



 
Please log in if you'd like to add a comment.