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


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. 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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
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

Biochemical Reaction

QuestionAnswer
What are the possible outcomes of the Lysine Iron Agar test and what do they indicate about the organisms being observed? Purple Slant/Purple butt: + for decarboxylation - K/K *anaerobic - H2S production may be seen Purple Slant/Yellow butt: - for decarboxylation - K/A - fermentation of glucose only Burgundy Slant/Yellow butt: + for deamination - A/A *aerobic
What substances are produced by the organisms in the LIA test? K/K - carboxyl group (-COOH) - produces cadaverine and CO2 A/A - amine group (-NH2) K/A - no reaction
Why is H2S production not the most reliable indicator in biochemical testing methods? Certain species of bacteria may have different strains that may or may not produce H2S when tested
What could be a potential outcome of incubating a test in a CO2 environment? This could alter the pH of the environment, which will alter test results and lead to misidentification
What part of the Ornithine test do we look at for interpretation? Color change in the butt ONLY: - Positive = purple - Negative = yellow
Which biochemical tests would be classified as deamination reactions? - LIA - Phenylalanine
What organisms can the Oxidase test help us to identify? What would be a good test to run in order to identify between them? -Pseudomonas, Neisseria - Cetrimide
When running an OF test, which container indicates the presence of acid production? Fermentation reaction: - acid reaction in covered and uncovered tubes (both tubes Y) - acid reaction in covered tube only (covered tube Y, uncovered G) Oxidation reaction: - acid reaction in uncovered tube only (uncovered tube Y, covered tube G)
In the OF test, can a negative result be given? No - the organism being observed can only be identified as a "non-utilizer", meaning that it might not utilize the specific nutrient source in that media
What is the main difference between the Kligler Iron Agar and the Triple Sugar Iron Agar? The TSI Agar contains an extra nutrient source (sucrose), which helps to identify slow lactose fermenters better than the KIA
Created by: srstetz
Popular Science 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