Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
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

MICROBIO Ex20

Selective and Differential Media

QuestionAnswer
This agar is very selective due to the high concentration of salt it contains. Mannitol salt agar.
Used to isolate Gram-positive Staphylococcus Mannitol salt agar.
PEA? Negative No or slight growth -> Gram-negative because organism inhibit by phenylethyl alcohol
PEA? Positve Moderate to abundant of growth -> Gram-positive because organism is not inhibited by phenylethyl alcohol.
EMB medium - how to know if the organism is Gram - positive? No growth or light growth without changing color of growth -> Gram-positive because organism is inhibited by eosin and methylene blue.
EMB medium - how to know if the organism is non-coliform Gram-negative Moderate or abundant of growth, and growth doesn't change color ->Gram - negative noncoliform. because organism is inhibited by eosin and methylene blue, organism is nonfermenter.
EMB medium - how to know if the organism iscoliform Gram-negative Moderate or abundant of growth with pink to metallic green color -> Gram-negative coliform. Because organism is inhibited by eosin and methylene blue, organism ferment sugar to acid.
PEA Phenylethyl Alcohol - used to isolate coliform Gram-positive organisms
EMB Eosin Methylene Blue - used to isolate Gram-negative organisms.
x
Created by: pipi1402