BMSC 210 Post-Midterm 2 Quizzes |
100% Correct Answers | Verified | Latest
2024 Version
Which is one major difference between anaerobic and aerobic respiration? - ✔✔Electron acceptor
Fermentation has a relatively low ATP yield compared to aerobic respiration because - ✔✔oxidative
phosphorylation yields a lot of ATP.
Aerobic respiration and anaerobic respiration use different ________________, while chemolithotrophs
and chemoorganotrophs use different _________________. - ✔✔electron acceptors / electron donors
During fermentation, ______________ compounds both donate and accept electrons, with no need for
external electron acceptors, but during respiration, ____________ electron donors are oxidized with
exogenous compounds serving as electron acceptors. - ✔✔organic / inorganic or organic
Whether an organism is classified as a photoheterotroph or a photoautotroph depends on its -
✔✔carbon source.
Selective medium differs from differential medium because - ✔✔selective medium permits growth of a
particular microbial type while differential medium is used to distinguish between types of organisms.
Organisms able to live in environments with high sugar concentrations are - ✔✔osmophiles.
Obligate anaerobes which are sensitive to O2 would be found growing - ✔✔only at the bottom of a tube
of thioglycolate broth.
The optimal growth temperature of a bacterium is most closely related to the optimal temperature for -
✔✔enzyme function.
, Most mesophilic organisms can grow in a temperature range of - ✔✔20-45°C.
Well-designed microbial activity measurements can reveal ________ of major metabolic reactions in a
habitat. - ✔✔both types and rates
The use of chemical agents directly on exposed body surfaces to destroy or inhibit vegetative pathogens
is - ✔✔antisepsis
The time interval required for the formation of two cells from one is called the - ✔✔generation time.
Winogradsky columns are used primarily for enrichment of - ✔✔aerobes, anaerobes, and phototrophs.
The foul-smelling putrescine byproduct suggests activity of - ✔✔amino acid fermentation by clostridia.
Identifying carboxysomes in a bacterium suggests it - ✔✔will use the Calvin cycle to convert the
concentrated CO2 into biomass.
Alternative autotrophic routes to the Calvin cycle, such as the reverse citric acid cycle and the
hydroxypropionate pathway, are unified in their requirement for - ✔✔CO2.
A halotolerant facultative anaerobe would grow BEST in which of the following environments? -
✔✔Oxygenated non-saline
Bacteria that are able to grow in humans and cause disease would be classified as - ✔✔mesophiles.
A ________ agent is a chemical that inhibits bacteria from reproducing, but does NOT necessarily kill
them. - ✔✔bacteriostatic
Which method would be LEAST effective at sterilizing a glass hockey stick to use in the spread-plate
method?
100% Correct Answers | Verified | Latest
2024 Version
Which is one major difference between anaerobic and aerobic respiration? - ✔✔Electron acceptor
Fermentation has a relatively low ATP yield compared to aerobic respiration because - ✔✔oxidative
phosphorylation yields a lot of ATP.
Aerobic respiration and anaerobic respiration use different ________________, while chemolithotrophs
and chemoorganotrophs use different _________________. - ✔✔electron acceptors / electron donors
During fermentation, ______________ compounds both donate and accept electrons, with no need for
external electron acceptors, but during respiration, ____________ electron donors are oxidized with
exogenous compounds serving as electron acceptors. - ✔✔organic / inorganic or organic
Whether an organism is classified as a photoheterotroph or a photoautotroph depends on its -
✔✔carbon source.
Selective medium differs from differential medium because - ✔✔selective medium permits growth of a
particular microbial type while differential medium is used to distinguish between types of organisms.
Organisms able to live in environments with high sugar concentrations are - ✔✔osmophiles.
Obligate anaerobes which are sensitive to O2 would be found growing - ✔✔only at the bottom of a tube
of thioglycolate broth.
The optimal growth temperature of a bacterium is most closely related to the optimal temperature for -
✔✔enzyme function.
, Most mesophilic organisms can grow in a temperature range of - ✔✔20-45°C.
Well-designed microbial activity measurements can reveal ________ of major metabolic reactions in a
habitat. - ✔✔both types and rates
The use of chemical agents directly on exposed body surfaces to destroy or inhibit vegetative pathogens
is - ✔✔antisepsis
The time interval required for the formation of two cells from one is called the - ✔✔generation time.
Winogradsky columns are used primarily for enrichment of - ✔✔aerobes, anaerobes, and phototrophs.
The foul-smelling putrescine byproduct suggests activity of - ✔✔amino acid fermentation by clostridia.
Identifying carboxysomes in a bacterium suggests it - ✔✔will use the Calvin cycle to convert the
concentrated CO2 into biomass.
Alternative autotrophic routes to the Calvin cycle, such as the reverse citric acid cycle and the
hydroxypropionate pathway, are unified in their requirement for - ✔✔CO2.
A halotolerant facultative anaerobe would grow BEST in which of the following environments? -
✔✔Oxygenated non-saline
Bacteria that are able to grow in humans and cause disease would be classified as - ✔✔mesophiles.
A ________ agent is a chemical that inhibits bacteria from reproducing, but does NOT necessarily kill
them. - ✔✔bacteriostatic
Which method would be LEAST effective at sterilizing a glass hockey stick to use in the spread-plate
method?
