BIOL-2460 EXAM 3 STUDY QUESTIONS AND CORRECT ANSWERS
2 views 0 purchase
Course
BIO 2460
Institution
BIO 2460
Which of the following is not a major element of a microbial cell?
a. nitrogen b. oxygen c. copper d. hydrogen e. carbon c
Surfactants work by
A. Coating the organism preventing interaction with its environment B. Blocking transport into the organism C. Blocking transport out from the organism D...
BIOL-2460 EXAM 3 STUDY QUESTIONS
AND CORRECT ANSWERS
Which of the following is not a major element of a microbial cell?
a. nitrogen
b. oxygen
c. copper
d. hydrogen
e. carbon ✅c
Surfactants work by
A. Coating the organism preventing interaction with its environment
B. Blocking transport into the organism
C. Blocking transport out from the organism
D. Disrupting membrane integrity
E. All of the choices are correct ✅d
Base pairs in DNA are held together by __________ bonds.
a. sulfhydryl
b. polar covalent
c. nonpolar covalent
d. hydrogen
e. peptide ✅d
When microbes are in a close nutritional relationship, and one benefits but the other is
not harmed, it is called:
a. satellitism
b. commensalism
c. symbiosis
d. mutualism
e. synergism ✅b
Aerobic respiration is an example of _____________?
a. chemoheterotrophy
b. photoheterotrophy
c. photosynthesis
d. chemoautotrophy
e. methanoheterotrophy ✅a
, The phase of the bacterial growth curve in which the rate of multiplication equals the
rate of cell death is the:
a. log phase
b. lag phase
c. stationary phase
d. death phase
e. telophase ✅c
A clinical microbiologist makes serial dilutions of several antimicrobials in broth, and
then incubates each drug dilution with a standard amount of a patient's isolated
pathogen. What is this microbiologist setting up?
a. MIC test
b. E-test
c. therapeutic index (TI)
d. antibiogram
e. Kirby Bauer technique ✅a
Which of the following types of control agents would be used to achieve sterility?
a. fungicide
b. bactericide
c. germicide
d. virucide
e. sporicide ✅e
An ideal antimicrobial therapeutic drug exhibits all of the following characteristics except
____________:
a. non-toxic to host
b. easily broken down by host
c. easily administered
d. limited capacity to elicit resistance
e. non-allergenic ✅b
Synthesis of an inducible enzyme requires:
a. repressor alone bound to operator
b. substrate bound to promoter
c. substrate bound to repressor
d. corepressor and repressor binding to operator ✅c
The movement of substances from lower to higher concentration across a
semipermeable membrane that must have a specific protein carrier and cell expenditure
of energy is called:
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 twishfrancis. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.99. You're not tied to anything after your purchase.
