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

Epidemiology

TermDefinition
Epidemiology Study of patterns of disease infection and spread
Endemic Diseases are present in a population all the time at low levels.
Epidemic Affects many individuals in a population in a short amount of time.
Pandemic Worldwide epidemic
Differential Stain Use of 2 or more dyes to differentiate among bacterial species or distinguish structures of an organism. Ex) gram stain
Endospores Unique to bacteria; tough dormant structures that allow bacteria to survive harmful environmental conditions; produced by vegetative cell.
Aseptic technique Set of procedure to minimize chances that cultures will be contaminated by organisms from environment (prevents cross contamination)
Sterile Free from bacteria or other living microorganisms
Standard Plate Count Technique used to determine the number of bacteria in a sample
Selective Media Enhances or inhibits the growth of some bacteria
Differential Media Distinguishes between bacteria on same medium based on physical changes in medium; visible change to medium
Obligate aerobe Requires oxygen to grow.
Microaerophiles Grows best in presence of a small amount of oxygen
Obligate anaerobes Killed by oxygen
Faculty anaerobes Carries aerobic metabolism in presence of oxygen and shifts to anaerobic metabolism in the absence of oxygen
Psychrophile Cold loving organisms grow best at 15C to 20C
Mesophile Organisms grows best at 25C and 40C including most bacteria
Thermophile Heat loving organisms 50 to 60C
Hypertonic Solution Concentration of dissolved materials is greater than that in a cell; water moves out of cell and cell shrinks
Hypotonic solution Concentration of dissolved materials is less than that of the cell; water moves in, cell lyses
Halophile Salt loving organisms
Disinfectant Chemicals used on the surface of an inanimate objects to kill microbes
Antiseptic
Antibiotic Chemicals that have ability to kill bacteria
Photoreactivation
Repair of DNA divers by light activated enzyme
Created by: Yepez2017
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