Flashcards in MicroBioFinal Deck (101)
where does Krebs Cycle occur during Prokaryotic Cellular Respiration?
in the cytosol
what is the final electron acceptor for obligate anerobes?
anything but oxygen
how much ATP is produced during electron transport for Aerobic Cellular Respiration?
how does UV light kill bacteria?
by damaging DNA
removing microbes from a limited area
barring allergies, why doesn't Penicillin hurt us?
we do not make peptidogylcan
where do we get most of our antibiotics from?
what do quinolones do?
attack DNA gyrase
name the 2 biggest reasons that antibiotic resistance has increased dramatically in the last 50 years
1. *overuse in farm animals
2. being flushed down the toilet
which antibiotic resistant protein pumps the antibiotic back out of the cell?
rapid efflux pumps
which phage administration techniques seem to have the lowest interference from the immune system?
which environmental sources that we interact with daily contain large numbers of bacteriophage?
water and food
which enzyme does MRSA use to degrade the antibiotics we try to use against it?
which toxin does MRSA release that causes disease symptoms?
alpha toxins (exotoxins)
where do healthy people carry MRSA?
normal flora (nares)
what is the preferred antibiotic to use against MRSA at this point?
according to 2002 data, what percentage of nosocomial infections were MRSA infections?
which organism causes plague?
Yersinia* Pestis (UNDERLINE!)
which symptom marks the beginning of secondary pneumonic plague?
how long do you have after the 1st symptoms to treat pneumonic plague?
what is the death rate for untreated pneumonic plague?
what bacterial cell shape does Borrelia burgdorferi have?
which key feature do you look for to detect Early Localized Lyme?
stiff neck or target lesions
how are we told to prevent Lyme disease today?
1. check yourself and pets for ticks after being in wooded areas and grassy areas
2. making sure that head of tick is completely removed
name the 4 body fluids you can get HIV from
seminal fluid, vaginal secretions, blood, breast milk
what is the clinical definition of AIDS?
less than 200mL of T helper cells per mL of blood
what do protease inhibitors do?
prevent assembly of new virus
if we want to functionally cure someone, when do we need to start treatment?
within 6 weeks of exposure/infection
name on method of transmission for chicken pox