MBIO Test Tophat Exam Questions &
Answers (Grade A+)
Cyanobacteria are only prokaryotes that use _________ to
hydrolyze water with O2-release.
a. plastocyanin
b. bacteriochlorophyll
c. photosystem I alone
d. both photosystems I and II
e. none of the above -
correct answer ✅d. both photosystems I and II
Which of the following form spores?
a. streptococcus pyogenes
b. escherichia coli
c. clostridium perfringens
d. lactobacillus acidophilus
e. both c and d -
correct answer ✅c. clostridium perfringens
,MBIO Test Tophat Exam Questions &
Answers (Grade A+)
Which group of proteobacteria includes bacteria like bdellovibrio
that parasitize other proteobacteria?
a. alphaproteobacteria
b. betaproteobacteria
c. gammaproteobacteria
d. deltaproteobacteria
e. epsilonproteobacteria -
correct answer ✅d. deltaproteobacteria
Which of the following bacteria generally lack a cell wall?
a. verrucomicrobia
b. planctomycetes
c. spirochetes
d. gammaproteobacteria
e. clostridia -
correct answer ✅b. planctomycetes
Which of the following is correct about Verrucomicrobia?
,MBIO Test Tophat Exam Questions &
Answers (Grade A+)
a. they lack a cell wall
b. they have a peptidoglycan cell wall
c. they display tublin-containing wart-like cytoskeleton projections
d. a and c are correct
e. b and c are correct -
correct answer ✅e. b and c are correct
Which of the following is NOT a bacterial product that contributes
to human body odors?
a. ethyl butryate
b. hydrogen sulfide
c. methanethiol
d. isovaleric acid
e. dimethyl sulfide -
correct answer ✅a. ethyl butryate
Fred and George Weasley would like to make Snape's lunch smell
like unwashed socks. Which of the following should they magick
into his meal?
, MBIO Test Tophat Exam Questions &
Answers (Grade A+)
a. propanoic acid
b. lactate
c. ethyl butryate
d. hydrogen oxide
e. his food already smells like unwashed socks -
correct answer ✅a. propanoic acid
Which of the following should be relatively free from resident
microbes in a healthy individual?
a. skin
b. nose
c. mouth
d. lungs
e. vagina -
correct answer ✅d. lungs
Biofilms confer which of the following advantages on bacteria?
Answers (Grade A+)
Cyanobacteria are only prokaryotes that use _________ to
hydrolyze water with O2-release.
a. plastocyanin
b. bacteriochlorophyll
c. photosystem I alone
d. both photosystems I and II
e. none of the above -
correct answer ✅d. both photosystems I and II
Which of the following form spores?
a. streptococcus pyogenes
b. escherichia coli
c. clostridium perfringens
d. lactobacillus acidophilus
e. both c and d -
correct answer ✅c. clostridium perfringens
,MBIO Test Tophat Exam Questions &
Answers (Grade A+)
Which group of proteobacteria includes bacteria like bdellovibrio
that parasitize other proteobacteria?
a. alphaproteobacteria
b. betaproteobacteria
c. gammaproteobacteria
d. deltaproteobacteria
e. epsilonproteobacteria -
correct answer ✅d. deltaproteobacteria
Which of the following bacteria generally lack a cell wall?
a. verrucomicrobia
b. planctomycetes
c. spirochetes
d. gammaproteobacteria
e. clostridia -
correct answer ✅b. planctomycetes
Which of the following is correct about Verrucomicrobia?
,MBIO Test Tophat Exam Questions &
Answers (Grade A+)
a. they lack a cell wall
b. they have a peptidoglycan cell wall
c. they display tublin-containing wart-like cytoskeleton projections
d. a and c are correct
e. b and c are correct -
correct answer ✅e. b and c are correct
Which of the following is NOT a bacterial product that contributes
to human body odors?
a. ethyl butryate
b. hydrogen sulfide
c. methanethiol
d. isovaleric acid
e. dimethyl sulfide -
correct answer ✅a. ethyl butryate
Fred and George Weasley would like to make Snape's lunch smell
like unwashed socks. Which of the following should they magick
into his meal?
, MBIO Test Tophat Exam Questions &
Answers (Grade A+)
a. propanoic acid
b. lactate
c. ethyl butryate
d. hydrogen oxide
e. his food already smells like unwashed socks -
correct answer ✅a. propanoic acid
Which of the following should be relatively free from resident
microbes in a healthy individual?
a. skin
b. nose
c. mouth
d. lungs
e. vagina -
correct answer ✅d. lungs
Biofilms confer which of the following advantages on bacteria?
