Microbiology UTA 2460 - Exam 3 Questions With Complete Solutions
Aerobic respiration is an example of... - (ANSWER)chemoheterotrophy
Bacteria living in a freshwater stream that are moved to salty seawater would... - (ANSWER)become
dehydrated due to the loss of water
The antiparallel arrangement within DNA molecules refers to... - (ANSWER)one helix that runs from the
5' to 3' direction and the other strand runs from the 3' to 5' direction
When microbes are in a close nutritional relationship, and one benefits but the other is not harmed, it is
called... - (ANSWER)commensalism
The method of removing vegetative microbial life forms and debris is to reduce contamination to safe
levels is termed... - (ANSWER)sanitation
Base pairs in DNA are held together by __ bonds... - (ANSWER)hydrogen
All of the following pertain to transcription except... - (ANSWER)occurs on a ribosome in the cytoplasm
Place the following forms of radiation in order from the most penetrating to the least penetrating... -
(ANSWER)gamma, X-rays, cathode
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... - (ANSWER)active
transport
Each of the following is a target of antimicrobial agents except... - (ANSWER)cytoplasm
Who discovered transposons... - (ANSWER)Barbara McClintock
, Microbiology UTA 2460 - Exam 3 Questions With Complete Solutions
A drug exhibiting which therapeutic index value would be the safest, most effective to use on a patient...
- (ANSWER)20
Which of the following microorganisms would find hypotonic conditions most detrimental... -
(ANSWER)protozoa
The shortest time required to kill all the microbes in a sample at a specified temperature is called the... -
(ANSWER)thermal death time (TDT)
All __ consist of a thiazolidine ring, a beta-lactam ring, and an R group... - (ANSWER)penicillins
The development of virulent, toxin-producing bacterial strains due to the presence of a temperate
phage can occur through the process of... - (ANSWER)specialized transduction
Cultures of a bacterial species were incubated in a refrigerator (5C), on a lab bench top (22C), in a 37C
incubator and in a 50C incubator. After incubation, there was no growth at 37C and 50C, slight growth in
the refrigerator and abundant growth on the lab bench top. What term could be used for this species... -
(ANSWER)psychotroph
A chemical that inhibits beta-lactamase enzymes is... - (ANSWER)clavulanic acid
Heavy metals work by... - (ANSWER)inactivating proteins
Which of the following is not a mode of action of antiviral drugs... - (ANSWER)bond to ergosterol in the
cell membrane
The alcohol wipe used on a patient's skin before an injection is an example of... - (ANSWER)antisepsis
Which is incorrect about inducible operons... - (ANSWER)have genes turned off by a buildup of end
product
Aerobic respiration is an example of... - (ANSWER)chemoheterotrophy
Bacteria living in a freshwater stream that are moved to salty seawater would... - (ANSWER)become
dehydrated due to the loss of water
The antiparallel arrangement within DNA molecules refers to... - (ANSWER)one helix that runs from the
5' to 3' direction and the other strand runs from the 3' to 5' direction
When microbes are in a close nutritional relationship, and one benefits but the other is not harmed, it is
called... - (ANSWER)commensalism
The method of removing vegetative microbial life forms and debris is to reduce contamination to safe
levels is termed... - (ANSWER)sanitation
Base pairs in DNA are held together by __ bonds... - (ANSWER)hydrogen
All of the following pertain to transcription except... - (ANSWER)occurs on a ribosome in the cytoplasm
Place the following forms of radiation in order from the most penetrating to the least penetrating... -
(ANSWER)gamma, X-rays, cathode
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... - (ANSWER)active
transport
Each of the following is a target of antimicrobial agents except... - (ANSWER)cytoplasm
Who discovered transposons... - (ANSWER)Barbara McClintock
, Microbiology UTA 2460 - Exam 3 Questions With Complete Solutions
A drug exhibiting which therapeutic index value would be the safest, most effective to use on a patient...
- (ANSWER)20
Which of the following microorganisms would find hypotonic conditions most detrimental... -
(ANSWER)protozoa
The shortest time required to kill all the microbes in a sample at a specified temperature is called the... -
(ANSWER)thermal death time (TDT)
All __ consist of a thiazolidine ring, a beta-lactam ring, and an R group... - (ANSWER)penicillins
The development of virulent, toxin-producing bacterial strains due to the presence of a temperate
phage can occur through the process of... - (ANSWER)specialized transduction
Cultures of a bacterial species were incubated in a refrigerator (5C), on a lab bench top (22C), in a 37C
incubator and in a 50C incubator. After incubation, there was no growth at 37C and 50C, slight growth in
the refrigerator and abundant growth on the lab bench top. What term could be used for this species... -
(ANSWER)psychotroph
A chemical that inhibits beta-lactamase enzymes is... - (ANSWER)clavulanic acid
Heavy metals work by... - (ANSWER)inactivating proteins
Which of the following is not a mode of action of antiviral drugs... - (ANSWER)bond to ergosterol in the
cell membrane
The alcohol wipe used on a patient's skin before an injection is an example of... - (ANSWER)antisepsis
Which is incorrect about inducible operons... - (ANSWER)have genes turned off by a buildup of end
product
