1|Page
MBIO 3401 EXAM 1 NEWEST 2025 ACTUAL
EXAM COMPLETE 200 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+|BRAND
NEW!!
microbes include members of which of the following
groups? - .....ANSWER ...✔✔ bacteria, archaea,
fungi, viruses
which of the following scientist-contribution pairs is not
matched correctly? - .....ANSWER ...✔✔ louis pasteur
proved spontaneous generation
what is robert kochs contribution - .....ANSWER ...✔✔
developed the criteria for establishing a causative link
betwen an infectious agent and disease
what is leewunhoek's contribution - .....ANSWER ...✔✔
discovered individual microbes
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what is nightingales contributions - .....ANSWER ...✔✔
founded medical statistics
kochs postulates include all of the following except what
- .....ANSWER ...✔✔ the pathogen must be shown to
contain toxins
kocks postulates - .....ANSWER ...✔✔ a pure culture
must be obtained, pathogne must 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 - .....ANSWER
...✔✔ edward jenner
who discovered the first antibiotic - .....ANSWER
...✔✔ alexander fleming
who are the ancestors of mitochondria - .....ANSWER
...✔✔ proteobacteria
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what size are normal microbes - .....ANSWER ...✔✔
10-100um
what type of microbes are less than 10um - .....ANSWER
...✔✔ prokaryotes
what is the correct order of reagents in gram stain -
.....ANSWER ...✔✔ crystal violet, idodine, ehtanol,
safranin
in fluorescence micorscopy, the specimen absorbs
incident light and then re-emits a _____ energy and a
_____ wavelength - .....ANSWER ...✔✔ lower, longer
which of the following microscopes allows the best view
of bacterial flagella during motility - .....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 - .....ANSWER ...✔✔ phase-contrst
microscopy
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scanning electron microscopy - .....ANSWER ...✔✔
specimen is fixed and embedded, it cannot be used to
view live specimen, provdes 3D image of the specimen
atomic force microscope - .....ANSWER ...✔✔
measures van der Waals forces, example of scanning
probe microscop e
what is the best method to examining the presensce of a
chemical structure with a diameter of 3nm? -
.....ANSWER ...✔✔ x-ray crystallography
what is the structure of prokaryotes that performs the
same function as mitochodria in eukaryotes -
.....ANSWER ...✔✔ cell membrane
lipids - .....ANSWER ...✔✔ have ester linkages, while
those of archaea have ether linkages
component of peptidoglycan - .....ANSWER ...✔✔ n-
acetylmuramic acid, n-acetylglucosamine, amino acids,
peptide cross-links
MBIO 3401 EXAM 1 NEWEST 2025 ACTUAL
EXAM COMPLETE 200 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+|BRAND
NEW!!
microbes include members of which of the following
groups? - .....ANSWER ...✔✔ bacteria, archaea,
fungi, viruses
which of the following scientist-contribution pairs is not
matched correctly? - .....ANSWER ...✔✔ louis pasteur
proved spontaneous generation
what is robert kochs contribution - .....ANSWER ...✔✔
developed the criteria for establishing a causative link
betwen an infectious agent and disease
what is leewunhoek's contribution - .....ANSWER ...✔✔
discovered individual microbes
,2|Page
what is nightingales contributions - .....ANSWER ...✔✔
founded medical statistics
kochs postulates include all of the following except what
- .....ANSWER ...✔✔ the pathogen must be shown to
contain toxins
kocks postulates - .....ANSWER ...✔✔ a pure culture
must be obtained, pathogne must 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 - .....ANSWER
...✔✔ edward jenner
who discovered the first antibiotic - .....ANSWER
...✔✔ alexander fleming
who are the ancestors of mitochondria - .....ANSWER
...✔✔ proteobacteria
,3|Page
what size are normal microbes - .....ANSWER ...✔✔
10-100um
what type of microbes are less than 10um - .....ANSWER
...✔✔ prokaryotes
what is the correct order of reagents in gram stain -
.....ANSWER ...✔✔ crystal violet, idodine, ehtanol,
safranin
in fluorescence micorscopy, the specimen absorbs
incident light and then re-emits a _____ energy and a
_____ wavelength - .....ANSWER ...✔✔ lower, longer
which of the following microscopes allows the best view
of bacterial flagella during motility - .....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 - .....ANSWER ...✔✔ phase-contrst
microscopy
, 4|Page
scanning electron microscopy - .....ANSWER ...✔✔
specimen is fixed and embedded, it cannot be used to
view live specimen, provdes 3D image of the specimen
atomic force microscope - .....ANSWER ...✔✔
measures van der Waals forces, example of scanning
probe microscop e
what is the best method to examining the presensce of a
chemical structure with a diameter of 3nm? -
.....ANSWER ...✔✔ x-ray crystallography
what is the structure of prokaryotes that performs the
same function as mitochodria in eukaryotes -
.....ANSWER ...✔✔ cell membrane
lipids - .....ANSWER ...✔✔ have ester linkages, while
those of archaea have ether linkages
component of peptidoglycan - .....ANSWER ...✔✔ n-
acetylmuramic acid, n-acetylglucosamine, amino acids,
peptide cross-links
