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

14 & 15

QuestionAnswer
Capabilities of a pathogen maintain reservoir, leave its reservoir & enter a host, adhere to the surface of the host, invade the body of the host, evade the body's defenses, multiply within the body, leave the body & return to its reservoir or enter a new host
symbiosis relationship between normal microbiota & host
commensalism one organism benefits, other is unaffected
mutualism both organisms benefit
parasitism one organism benefits at the expense of the other
probiotics live microbes applied to or injested into the body, intended to exert a beneficial effect
Koch's postulates used to prove the cause of an infectious disease
Normal microbiota colonize host opportunist pathogens, survive in spite of body's defenses, protect host
protection of host occupying niches that pathogens might occupy, producing acids, producing bacteriocins
Human reservoirs incubatory carriers, chronic carriers
incubatory carriers infected, have not developed symptoms yet
chronic carriers harbor pathogen, never become sick ie Salmonella typhi, streptococcus pyogenes
animal reservoirs both domestic & wild, new forms of disease develop; zoonosis
zoonosis human disease caused by a pathogen with an animal reservoir, ie Rabies, lyme disease, influenza
environmental factors soil: Colstridium tetani water: Vibrio cholera & Salmonella typhi
Portals of entry mucous membranes, skin, parental route
mucous membranes respiratory, gastrointestinal, genitourinary tract, conjunctiva
parental route direct deposit beneath the skin
ID50 infections dose for 50% of test pop. Bacillus anthracis: 10-50 endospores on skin
LD50 lethal dose for 50% of test pop. Botulinum: 0.03 ng/kg
Created by: mandilucille
Popular Biology 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