BIO 351 Final Exam 2025 Questions
and Answers 100% Pass
What is the cell wall component that members of bacteria have that members of
archaea do not? - ✔✔peptidoglycan
Long spiral bacteria that form flexible helices and have endoflagella are called -
✔✔Spirochete
Which of the three main components of flagella crosses the components of the cell
envelope - ✔✔basal body
Polysaccharides that compose capsules and slime layers are termed - ✔✔glycocylax
This group of organisms are largely known to exist in extreme environments such as
such as a cow's rumen or extreme pressures and temperatures such as those
experienced at hydrothermal vents on the bottom of the ocean - ✔✔archaea
You are examining an unknown micorbial sample in the lab and identify the cell shape
as spirochete. This helps you identify that you must be working with a - ✔✔Bacterial
cell
Viral cell tropism (cell specificity) is determined by - ✔✔Viral glycoproteins (spike
proteins)
Bacterial spores can survive being run through the autoclave - ✔✔True
Acellular infectious agent composed of protein, nucleic acid, and potentially lipid is a -
✔✔virus
COPYRIGHT © 2025 BY SOPHIA BENNETT, ALL RIGHTS RESERVED 1
, Acellular infectious agents composed only of RNA and can be important plant
pathogens - ✔✔Viroids
Acellular infectious agents composed only of protein and cause disease called
spongiform encephalophiles (such as Kuru) - ✔✔Prions
You have cultured bacillus subtilis in the lab and found it to be a spore forming species,
you discover that leaving the culture in past 24 hour mark will leas to sporulation at this
point the culture would likely be starving and be in the - ✔✔stationary phase
The MinCDE system in e. coli is known to - ✔✔all the above
A pathogen such as staphylococcus aureus that causing skin infections would be
considered - ✔✔mesophile
Microbes in a biofilm would exhibit - ✔✔sessile growth
microbes in a biofilm can communicate with one another using a process called -
✔✔Quorum sensing
the process of harnessing light energy to repair thymine dimers in prokaryotic cells is
called - ✔✔photoreactivation
Extrachromosomal circular molecules of DNA that frequently contain virulence factors
that can be paired between species of bacteria are called - ✔✔Plasmids
Which of the following intrinsic factors would decrease microbial growth on food items
- ✔✔vacuum sealing food item
Potential pathogens that can survive in water and are representatives of sever health
risks are known as - ✔✔Microbial contaminate candidates
Coliform bacteria are - ✔✔facilitative anaerobe
COPYRIGHT © 2025 BY SOPHIA BENNETT, ALL RIGHTS RESERVED 2
and Answers 100% Pass
What is the cell wall component that members of bacteria have that members of
archaea do not? - ✔✔peptidoglycan
Long spiral bacteria that form flexible helices and have endoflagella are called -
✔✔Spirochete
Which of the three main components of flagella crosses the components of the cell
envelope - ✔✔basal body
Polysaccharides that compose capsules and slime layers are termed - ✔✔glycocylax
This group of organisms are largely known to exist in extreme environments such as
such as a cow's rumen or extreme pressures and temperatures such as those
experienced at hydrothermal vents on the bottom of the ocean - ✔✔archaea
You are examining an unknown micorbial sample in the lab and identify the cell shape
as spirochete. This helps you identify that you must be working with a - ✔✔Bacterial
cell
Viral cell tropism (cell specificity) is determined by - ✔✔Viral glycoproteins (spike
proteins)
Bacterial spores can survive being run through the autoclave - ✔✔True
Acellular infectious agent composed of protein, nucleic acid, and potentially lipid is a -
✔✔virus
COPYRIGHT © 2025 BY SOPHIA BENNETT, ALL RIGHTS RESERVED 1
, Acellular infectious agents composed only of RNA and can be important plant
pathogens - ✔✔Viroids
Acellular infectious agents composed only of protein and cause disease called
spongiform encephalophiles (such as Kuru) - ✔✔Prions
You have cultured bacillus subtilis in the lab and found it to be a spore forming species,
you discover that leaving the culture in past 24 hour mark will leas to sporulation at this
point the culture would likely be starving and be in the - ✔✔stationary phase
The MinCDE system in e. coli is known to - ✔✔all the above
A pathogen such as staphylococcus aureus that causing skin infections would be
considered - ✔✔mesophile
Microbes in a biofilm would exhibit - ✔✔sessile growth
microbes in a biofilm can communicate with one another using a process called -
✔✔Quorum sensing
the process of harnessing light energy to repair thymine dimers in prokaryotic cells is
called - ✔✔photoreactivation
Extrachromosomal circular molecules of DNA that frequently contain virulence factors
that can be paired between species of bacteria are called - ✔✔Plasmids
Which of the following intrinsic factors would decrease microbial growth on food items
- ✔✔vacuum sealing food item
Potential pathogens that can survive in water and are representatives of sever health
risks are known as - ✔✔Microbial contaminate candidates
Coliform bacteria are - ✔✔facilitative anaerobe
COPYRIGHT © 2025 BY SOPHIA BENNETT, ALL RIGHTS RESERVED 2
