BIO 210 FINAL Exam Questions With
Accurate Solutions 2025\2026 A+ Grade
match each description to the correct group of microorganisms.
- accurate answers-Single-celled prokaryotes - bacteria
Single or multi-cellular eukaryotes that photosynthesize to obtain energy -
algae
Multicellular eukaryotic organisms like parasitic worms - helminths
Minute acellular particles that parasitize cells - viruses
Molds and yeasts - fungi
Unicellular eukaryotes often described as animal-like - protozoa
Please label the image to assess your knowledge of prokaryotic cell structure.
- accurate answers-
Please label the image to test your understanding of differences in gram-
positive and gram-negative cell structure.
- accurate answers-Picture on desktop
Please place the images in the correct order to assess your knowledge of the
sporulation cycle.
- accurate answers-picture on desktop
novel prokaryotic organisms that belong to their own superkingdom
(domain).
- accurate answers-archea
Although they share many bacterial characteristics, members of the Domain
Archaea are more closely related to Domain _________ than to bacteria
- accurate answers-eukarya
,For example, both archaea and eukaryotes share unique ___________ RNA
sequences and their ribosomal subunit structures are similar as well.
- accurate answers-ribosomal
Characteristics that define archaea, however, include the presence of unique
membrane _____, _____ construction and composition and _____ pathways.
- accurate answers-lipids, cell wall, metabolic
Such adaptations to their metabolic pathways allow archaea to live in extreme
environments, such as areas with high levels of salt (______) or high
temperatures (______).
- accurate answers-halophiles, thermophiles
Why was the penicillin that was prescribed during Mr. Jones's first doctor's
visit ineffective in treating the infection?
- accurate answers-The infectious agent was resistant to the drug.
Why was the physician's knowledge of an artificial heart valve important to
the continued treatment of Mr. Jones?
- accurate answers-Artificial valves readily support the growth of biofilms
containing pathogenic bacteria.
What was the significance of the prior MRSA skin infection?
- accurate answers-Mr. Jones needed to be treated for another drug-resistant
infection with multiple powerful antibiotics.
Microbial biofilms like the one seen here in Mr. Jones's case are the cause of
the majority of __________ infections
- accurate answers-chronic
What clues were the most important in arriving at the diagnosis of
endocarditis?
- accurate answers-Fever of unknown origin, Increased heart rate and
breathing, History of valve replacement, Heart murmur
What most likely killed Mr. Jones?
- accurate answers-stroke due to blockage by loosened piece of biofilm
, Which of the following surfaces have nutrients available that encourage the
development of biofilms?
- accurate answers-moist abiotic surfaces and biotic surfaces such as plant
and animal tissue
Which of the following structures leads to reversible binding of bacterial cells
to a surface?
- accurate answers-fimbriae and flagella
The production of which substance leads to thickening of the biofilm over
time?
- accurate answers-exopolymer
Microenvironments are created within the biofilm based on
- accurate answers-oxygen gradient
nutrient concentration
pH gradient
True or False: Biofilms are composed of a single bacterial species
- accurate answers-false
Please label the figure to further assess your understanding of the process of
biofilm formation.
- accurate answers-picture on desktop
True or False: Bacteria are larger than human cells.
- accurate answers-false
True or False: Bacteria are only visible with an electron microscope
- accurate answers-false
The term used to describe a cluster of spherical bacteria is __________.
- accurate answers-staphylococci
What general type of stain is used to separate types of bacteria based on their
cellular structures?
- accurate answers-differential
Accurate Solutions 2025\2026 A+ Grade
match each description to the correct group of microorganisms.
- accurate answers-Single-celled prokaryotes - bacteria
Single or multi-cellular eukaryotes that photosynthesize to obtain energy -
algae
Multicellular eukaryotic organisms like parasitic worms - helminths
Minute acellular particles that parasitize cells - viruses
Molds and yeasts - fungi
Unicellular eukaryotes often described as animal-like - protozoa
Please label the image to assess your knowledge of prokaryotic cell structure.
- accurate answers-
Please label the image to test your understanding of differences in gram-
positive and gram-negative cell structure.
- accurate answers-Picture on desktop
Please place the images in the correct order to assess your knowledge of the
sporulation cycle.
- accurate answers-picture on desktop
novel prokaryotic organisms that belong to their own superkingdom
(domain).
- accurate answers-archea
Although they share many bacterial characteristics, members of the Domain
Archaea are more closely related to Domain _________ than to bacteria
- accurate answers-eukarya
,For example, both archaea and eukaryotes share unique ___________ RNA
sequences and their ribosomal subunit structures are similar as well.
- accurate answers-ribosomal
Characteristics that define archaea, however, include the presence of unique
membrane _____, _____ construction and composition and _____ pathways.
- accurate answers-lipids, cell wall, metabolic
Such adaptations to their metabolic pathways allow archaea to live in extreme
environments, such as areas with high levels of salt (______) or high
temperatures (______).
- accurate answers-halophiles, thermophiles
Why was the penicillin that was prescribed during Mr. Jones's first doctor's
visit ineffective in treating the infection?
- accurate answers-The infectious agent was resistant to the drug.
Why was the physician's knowledge of an artificial heart valve important to
the continued treatment of Mr. Jones?
- accurate answers-Artificial valves readily support the growth of biofilms
containing pathogenic bacteria.
What was the significance of the prior MRSA skin infection?
- accurate answers-Mr. Jones needed to be treated for another drug-resistant
infection with multiple powerful antibiotics.
Microbial biofilms like the one seen here in Mr. Jones's case are the cause of
the majority of __________ infections
- accurate answers-chronic
What clues were the most important in arriving at the diagnosis of
endocarditis?
- accurate answers-Fever of unknown origin, Increased heart rate and
breathing, History of valve replacement, Heart murmur
What most likely killed Mr. Jones?
- accurate answers-stroke due to blockage by loosened piece of biofilm
, Which of the following surfaces have nutrients available that encourage the
development of biofilms?
- accurate answers-moist abiotic surfaces and biotic surfaces such as plant
and animal tissue
Which of the following structures leads to reversible binding of bacterial cells
to a surface?
- accurate answers-fimbriae and flagella
The production of which substance leads to thickening of the biofilm over
time?
- accurate answers-exopolymer
Microenvironments are created within the biofilm based on
- accurate answers-oxygen gradient
nutrient concentration
pH gradient
True or False: Biofilms are composed of a single bacterial species
- accurate answers-false
Please label the figure to further assess your understanding of the process of
biofilm formation.
- accurate answers-picture on desktop
True or False: Bacteria are larger than human cells.
- accurate answers-false
True or False: Bacteria are only visible with an electron microscope
- accurate answers-false
The term used to describe a cluster of spherical bacteria is __________.
- accurate answers-staphylococci
What general type of stain is used to separate types of bacteria based on their
cellular structures?
- accurate answers-differential
