MIP 302 Exam 1 Questions with Revised Answers
What are some main mechanisms of chemotherapeutic agents? - Answer-1. inhibition of cell wall synthesis
2. inhibition of protein synthesis
3. inhibition of nucleic acid synthesis
4. cell membrane disruption
5. metabolic antagonism
In genera...
MIP 302 Exam 1 Questions
with Revised Answers
What are some main mechanisms of chemotherapeutic agents? - Answer-1. inhibition
of cell wall synthesis
2. inhibition of protein synthesis
3. inhibition of nucleic acid synthesis
4. cell membrane disruption
5. metabolic antagonism
In general, how do penicillin and other β-lactam antibiotics work? What cell types are
the most effective against? Why are they not harmful to humans? - Answer-they target
cell wall synthesis and we do not have cell walls
How does tetracycline work? Why are eukaryotic organisms less affected by
tetracycline compared to bacteria? - Answer-it binds with 30s subunit ribosome and we
have less 30s than prokaryotes
All of the aspects of the Kirby-Bauer test are standardized in such a manner that the
only variable being tested is the bacteria's interaction with the antibiotics. How did we
standardize this experiment? - Answer-1. incoulum
2. medium
3. antibiotic
4. incubation
5. interpretation
What is a McFarland standard? What does it tell you? How is it used? - Answer-is it
used to ensure that there is roughly the same about of bacteria in each sample
What is a zone of inhibition? - Answer-how much it kills
Why did you swab the entire plate several times (without dipping our swab back into the
inoculated saline)? Why was it important to have a confluent bacterial lawn? - Answer-
you want bacteria on the whole thing so we can see the zone of inhibitions
explain the difference between resistant and susceptible bacteria to a given antibiotic. -
Answer-resistant means that the bacteria did not die and susceptible means it did kill
the bacteria
, Why are some bacteria more resistant or more susceptible to certain antibiotics? -
Answer-depending on bacterial structure, what the antibiotic targets, and if they have
any mutations against the antibiotic
Why would you expect to see a much larger zone of inhibition for ampicillin for
Staphylococci than for a Gram negative bacteria? In other words, why would E. coli
have a smaller measurement of susceptibility compared to Staphylococci? - Answer-E.
coli has less ppg so it gets killed faster therefore needs a smaller zone of inhibition to be
considered susceptible
The five-kingdom classification system? - Answer-animalia
plantae
fungi
protista
monera
what falls into the animalia class? - Answer-animals
what falls into the plantae class? - Answer-plants
what falls into the fungi class? - Answer-molds
yeast
what falls into the protista - Answer-protozoa
algae
what falls into the monera class? - Answer-bacteria
what is a virus? - Answer-composed of only protein and nucleic acid (either RNA or
DNA but not both)
acellular
not part of the 5 kingdoms system
only replicate within living host cells
have no nutritional needs, are able to replicate and are infectious to other cells
what is a prion? - Answer-composed of only protein
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Scholarsstudyguide. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.99. You're not tied to anything after your purchase.
