MBIO 3401 Exam 1 Zhang Questions &
Answers (Grade A+)
microbes include members of which of the following groups? -
correct answer ✅bacteria, archaea, fungi, viruses
which of the following scientist-contribution pairs is not matched
correctly? -
correct answer ✅louis pasteur proved spontaneous generation
what is robert kochs contribution -
correct answer ✅developed the criteria for establishing a
causative link betwen an infectious agent and disease
what is leewunhoek's contribution -
correct answer ✅discovered individual microbes
what is nightingales contributions -
correct answer ✅founded medical statistics
kochs postulates include all of the following except what -
correct answer ✅the pathogen must be shown to contain toxins
kocks postulates -
correct answer ✅a pure culture must be obtained, pathogne must
,MBIO 3401 Exam 1 Zhang Questions &
Answers (Grade A+)
be found in every individual suffering from the disease, the isolated
pathogen must be used to infect healthy hosts, healthy individuals
infected with osilated suspected pathogen must get sick with
disease
who performed the first vaccination -
correct answer ✅edward jenner
who discovered the first antibiotic -
correct answer ✅alexander fleming
who are the ancestors of mitochondria -
correct answer ✅proteobacteria
what size are normal microbes -
correct answer ✅10-100um
what type of microbes are less than 10um -
correct answer ✅prokaryotes
what is the correct order of reagents in gram stain -
correct answer ✅crystal violet, idodine, ehtanol, safranin
,MBIO 3401 Exam 1 Zhang Questions &
Answers (Grade A+)
in fluorescence micorscopy, the specimen absorbs incident light
and then re-emits a _____ energy and a _____ wavelength -
correct answer ✅lower, longer
which of the following microscopes allows the best view of
bacterial flagella during motility -
correct answer ✅dark-field microscope
what type pf microscopy exploits differnces in refactive indices
between cell parts and surroundign media as well as all live cells -
correct answer ✅phase-contrst microscopy
scanning electron microscopy -
correct answer ✅specimen is fixed and embedded, it cannot be
used to view live specimen, provdes 3D image of the specimen
atomic force microscope -
correct answer ✅measures van der Waals forces, example of
scanning probe microscop e
, MBIO 3401 Exam 1 Zhang Questions &
Answers (Grade A+)
what is the best method to examining the presensce of a chemical
structure with a diameter of 3nm? -
correct answer ✅x-ray crystallography
what is the structure of prokaryotes that performs the same
function as mitochodria in eukaryotes -
correct answer ✅cell membrane
lipids -
correct answer ✅have ester linkages, while those of archaea have
ether linkages
component of peptidoglycan -
correct answer ✅n-acetylmuramic acid, n-acetylglucosamine,
amino acids, peptide cross-links
prokaryotic outer membrane -
correct answer ✅found in gram negative bacteria, contains porins,
contains toxic component, contains lipopolysaccharide layer
Answers (Grade A+)
microbes include members of which of the following groups? -
correct answer ✅bacteria, archaea, fungi, viruses
which of the following scientist-contribution pairs is not matched
correctly? -
correct answer ✅louis pasteur proved spontaneous generation
what is robert kochs contribution -
correct answer ✅developed the criteria for establishing a
causative link betwen an infectious agent and disease
what is leewunhoek's contribution -
correct answer ✅discovered individual microbes
what is nightingales contributions -
correct answer ✅founded medical statistics
kochs postulates include all of the following except what -
correct answer ✅the pathogen must be shown to contain toxins
kocks postulates -
correct answer ✅a pure culture must be obtained, pathogne must
,MBIO 3401 Exam 1 Zhang Questions &
Answers (Grade A+)
be found in every individual suffering from the disease, the isolated
pathogen must be used to infect healthy hosts, healthy individuals
infected with osilated suspected pathogen must get sick with
disease
who performed the first vaccination -
correct answer ✅edward jenner
who discovered the first antibiotic -
correct answer ✅alexander fleming
who are the ancestors of mitochondria -
correct answer ✅proteobacteria
what size are normal microbes -
correct answer ✅10-100um
what type of microbes are less than 10um -
correct answer ✅prokaryotes
what is the correct order of reagents in gram stain -
correct answer ✅crystal violet, idodine, ehtanol, safranin
,MBIO 3401 Exam 1 Zhang Questions &
Answers (Grade A+)
in fluorescence micorscopy, the specimen absorbs incident light
and then re-emits a _____ energy and a _____ wavelength -
correct answer ✅lower, longer
which of the following microscopes allows the best view of
bacterial flagella during motility -
correct answer ✅dark-field microscope
what type pf microscopy exploits differnces in refactive indices
between cell parts and surroundign media as well as all live cells -
correct answer ✅phase-contrst microscopy
scanning electron microscopy -
correct answer ✅specimen is fixed and embedded, it cannot be
used to view live specimen, provdes 3D image of the specimen
atomic force microscope -
correct answer ✅measures van der Waals forces, example of
scanning probe microscop e
, MBIO 3401 Exam 1 Zhang Questions &
Answers (Grade A+)
what is the best method to examining the presensce of a chemical
structure with a diameter of 3nm? -
correct answer ✅x-ray crystallography
what is the structure of prokaryotes that performs the same
function as mitochodria in eukaryotes -
correct answer ✅cell membrane
lipids -
correct answer ✅have ester linkages, while those of archaea have
ether linkages
component of peptidoglycan -
correct answer ✅n-acetylmuramic acid, n-acetylglucosamine,
amino acids, peptide cross-links
prokaryotic outer membrane -
correct answer ✅found in gram negative bacteria, contains porins,
contains toxic component, contains lipopolysaccharide layer
