Microbiology
Microbiology Final Exam Review Questions
With Correct Answers 2026 Update
In the name Staphylococcus aureus, aureus is the - CORRECT ANSWER -
species
A prokaryotic cell may possess each of the following cellular components
EXCEPT - CORRECT ANSWER -a nucleus
Which of the following is not a domain in the three-domain system? -
CORRECT ANSWER Animalia
Who is credited with disproving spontaneous generation? - CORRECT
ANSWER -Louis Pasteur
Who is considered to be the father of epidemiology? - CORRECT ANSWER -
John Snow
Who is credited with developing vaccines? - CORRECT ANSWER -Edward
Jenner
Which of the following is not a product of alcohol fermentation? - CORRECT
ANSWER -Lactate
This parasitic member of the domain Eukarya is know for its complex life
cycle, microscopic eggs, and macroscopic adult stages - CORRECT ANSWER -
Helminths
Which of these is not a postulate of Koch? - CORRECT ANSWER -The pathogen
must be inoculated into an already diseased host
Microbiology Final Exam Review Questions With Correct Answers 2026 Update
,Microbiology
Anaerobic respiration - CORRECT ANSWER -uses an inorganic compound,
besides oxygen, as the final electron acceptor
Which of the following statements about Gram-positive bacteria is true? -
CORRECT ANSWER They have a thick layer of peptidoglycan
Which microscope is used to observe a specimen that emits light when
illuminated with an ultraviolet light? - CORRECT ANSWER -fluorescence
microscope
A microorganism grows in the lab on medium containing mineral salts but no
organic compounds. The organism is likely to be a(n) - CORRECT ANSWER -
autotroph
The growth of bacterial cultures is best describes as - CORRECT ANSWER -
logarithmic growth
Which of the following statements is not correct regarding prokaryotic cells? -
CORRECT ANSWER -Their DNA is enclosed within a membrane
Which of the following statements best describes what happens when a
bacterial cell is placed in a hypertonic solution? - CORRECT ANSWER -Water
will move out of the cell
Which of the following statements is TRUE? - CORRECT ANSWER -Endospores
allow a population to survive environmental changes
If a bacterial cell lost its ability to form fimbriae, which of the following would
most likely be immediately affected? - CORRECT ANSWER -Attachment
Microbiology Final Exam Review Questions With Correct Answers 2026 Update
,Microbiology
Which of the following pairs is mismatched? - CORRECT ANSWER -Smooth
endoplasmic reticulum - protein synthesis
Many vitamins are important ____ of enzymes. - CORRECT ANSWER -
Coenzymes
Most prokaryotes divide by a process called - CORRECT ANSWER -binary
fission
If bacterial cells are growing well on media containing glucose, but are not
producing the desired product, which is ethanol, what is the most likely
explanation? - CORRECT ANSWER -O2 is in the medium
If a cell is using an organic final electron acceptor, when is ATP produced? -
CORRECT ANSWER Only in glycolysis
The biggest difference between prokaryotes and eukaryotes is that -
CORRECT ANSWER eukaryotes have a membrane-bound nucleus and
prokaryotes do not
Viruses are not considered living organisms because they - CORRECT
ANSWER -cannot reproduce by themselves and are not made of cells
As they are written in this question, NADH and FADH2 are - CORRECT
ANSWER -reduced
A culture medium consisting of agar, peptone, and beef heart is a - CORRECT
ANSWER -complex medium
Traits of a pathogen that increase its ability to infect hosts - CORRECT
ANSWER -Virulence Factors
Microbiology Final Exam Review Questions With Correct Answers 2026 Update
, Microbiology
Which of these is NOT a component of the cell wall? - CORRECT ANSWER -
Flagellin
Electron microscopes have higher resolution because - CORRECT ANSWER -
they use electrons with a shorter wavelength
Immersion oil is used to - CORRECT ANSWER -increase resolution by
decreasing refraction
Which of the following methods is used to preserve food by both freezing and
drying food? - CORRECT ANSWER -lyophilization
During the light-independent reactions in photosynthesis, ___ is used to bind
to Carbon Dioxide to make 2 three carbon sugars - CORRECT ANSWER -
Ribulose Biphosphate
Pleomorphic, lacks a cell wall, doest not gram stain - CORRECT ANSWER -
Mycoplasma
Zinc, an essential trace element for most organisms, is present in the active
site of the enzyme carboxypeptidase. The zinc most likely functions as -
CORRECT ANSWER -a cofactor necessary for enzyme activity
Most of the CO2 from the catabolism of glucose is released during - CORRECT
ANSWER -the Krebs cycle
The theoretical yield of ATP produced during aerobic respiration is - CORRECT
ANSWER -30
The majority of ATP produced in the reactions of cellular respiration is
through - CORRECT ANSWER -oxidative phosphorylation
Microbiology Final Exam Review Questions With Correct Answers 2026 Update
Microbiology Final Exam Review Questions
With Correct Answers 2026 Update
In the name Staphylococcus aureus, aureus is the - CORRECT ANSWER -
species
A prokaryotic cell may possess each of the following cellular components
EXCEPT - CORRECT ANSWER -a nucleus
Which of the following is not a domain in the three-domain system? -
CORRECT ANSWER Animalia
Who is credited with disproving spontaneous generation? - CORRECT
ANSWER -Louis Pasteur
Who is considered to be the father of epidemiology? - CORRECT ANSWER -
John Snow
Who is credited with developing vaccines? - CORRECT ANSWER -Edward
Jenner
Which of the following is not a product of alcohol fermentation? - CORRECT
ANSWER -Lactate
This parasitic member of the domain Eukarya is know for its complex life
cycle, microscopic eggs, and macroscopic adult stages - CORRECT ANSWER -
Helminths
Which of these is not a postulate of Koch? - CORRECT ANSWER -The pathogen
must be inoculated into an already diseased host
Microbiology Final Exam Review Questions With Correct Answers 2026 Update
,Microbiology
Anaerobic respiration - CORRECT ANSWER -uses an inorganic compound,
besides oxygen, as the final electron acceptor
Which of the following statements about Gram-positive bacteria is true? -
CORRECT ANSWER They have a thick layer of peptidoglycan
Which microscope is used to observe a specimen that emits light when
illuminated with an ultraviolet light? - CORRECT ANSWER -fluorescence
microscope
A microorganism grows in the lab on medium containing mineral salts but no
organic compounds. The organism is likely to be a(n) - CORRECT ANSWER -
autotroph
The growth of bacterial cultures is best describes as - CORRECT ANSWER -
logarithmic growth
Which of the following statements is not correct regarding prokaryotic cells? -
CORRECT ANSWER -Their DNA is enclosed within a membrane
Which of the following statements best describes what happens when a
bacterial cell is placed in a hypertonic solution? - CORRECT ANSWER -Water
will move out of the cell
Which of the following statements is TRUE? - CORRECT ANSWER -Endospores
allow a population to survive environmental changes
If a bacterial cell lost its ability to form fimbriae, which of the following would
most likely be immediately affected? - CORRECT ANSWER -Attachment
Microbiology Final Exam Review Questions With Correct Answers 2026 Update
,Microbiology
Which of the following pairs is mismatched? - CORRECT ANSWER -Smooth
endoplasmic reticulum - protein synthesis
Many vitamins are important ____ of enzymes. - CORRECT ANSWER -
Coenzymes
Most prokaryotes divide by a process called - CORRECT ANSWER -binary
fission
If bacterial cells are growing well on media containing glucose, but are not
producing the desired product, which is ethanol, what is the most likely
explanation? - CORRECT ANSWER -O2 is in the medium
If a cell is using an organic final electron acceptor, when is ATP produced? -
CORRECT ANSWER Only in glycolysis
The biggest difference between prokaryotes and eukaryotes is that -
CORRECT ANSWER eukaryotes have a membrane-bound nucleus and
prokaryotes do not
Viruses are not considered living organisms because they - CORRECT
ANSWER -cannot reproduce by themselves and are not made of cells
As they are written in this question, NADH and FADH2 are - CORRECT
ANSWER -reduced
A culture medium consisting of agar, peptone, and beef heart is a - CORRECT
ANSWER -complex medium
Traits of a pathogen that increase its ability to infect hosts - CORRECT
ANSWER -Virulence Factors
Microbiology Final Exam Review Questions With Correct Answers 2026 Update
, Microbiology
Which of these is NOT a component of the cell wall? - CORRECT ANSWER -
Flagellin
Electron microscopes have higher resolution because - CORRECT ANSWER -
they use electrons with a shorter wavelength
Immersion oil is used to - CORRECT ANSWER -increase resolution by
decreasing refraction
Which of the following methods is used to preserve food by both freezing and
drying food? - CORRECT ANSWER -lyophilization
During the light-independent reactions in photosynthesis, ___ is used to bind
to Carbon Dioxide to make 2 three carbon sugars - CORRECT ANSWER -
Ribulose Biphosphate
Pleomorphic, lacks a cell wall, doest not gram stain - CORRECT ANSWER -
Mycoplasma
Zinc, an essential trace element for most organisms, is present in the active
site of the enzyme carboxypeptidase. The zinc most likely functions as -
CORRECT ANSWER -a cofactor necessary for enzyme activity
Most of the CO2 from the catabolism of glucose is released during - CORRECT
ANSWER -the Krebs cycle
The theoretical yield of ATP produced during aerobic respiration is - CORRECT
ANSWER -30
The majority of ATP produced in the reactions of cellular respiration is
through - CORRECT ANSWER -oxidative phosphorylation
Microbiology Final Exam Review Questions With Correct Answers 2026 Update
