Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password

Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Question

Class of stimulant that includes caffeine, theophylline, and theobromine
click to flip
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know

Question

Which xanthine is primarily found in chocolate?
Remaining cards (13)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Xanthines

Xanthines for Biology of Drugs

QuestionAnswer
Class of stimulant that includes caffeine, theophylline, and theobromine Xanthines
Which xanthine is primarily found in chocolate? Theobromine
Caffeine is found in which foods? Coffee, tea, and chocolate. Also, as an additive to drinks and other products.
Caffeine works by inhibiting which inhibitory neuromodulator? Adenosine
Major symptom of caffeine withdrawal? Headache
Symptoms of caffeine withdrawal headache, irritability, lethargy, fatigue
Where is caffeine metabolized? Liver
Caffeine’s half-life 3-5 hours
Which xanthine is priamily found in tea? Theophylline
Medical use for theopylline? Treat Asthma
Caffeine may cause upset stomach because? Caffeine increases gastric secretions
Caffeine’s effect on heart rate increases heart rate
True or False: Caffeine stimulates the Sympathetic Nervous System True
True or False: Caffeine is a powerful diuretic True
Created by: jondoh
Popular Pharmacology sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards