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WGU Microbiology D311: Questions With Complete Solutions (100% Correct)
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WGU Microbiology D311: Questions With Complete Solutions (100% Correct)
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WGU Microbiology D311: Questions With CompleteSolutions (100% Correct)
Which class of microbes are unicellular organisms that typically lack
organelles? Right Ans - Bacteria
It is determined that a bacteria sample grows robustly in low, medium, and
high concentrations of salt. What is most likely true about this organism?
Right Ans - It is a halo tolerant
What is the additional molecule contained in the cell walls of Gram-positive
organisms that plays a role in the attachment of bacteriophages? Right Ans
- Teichoic acid
In which type of bacteria is the periplasmic space between the cell membrane
most easily observable? Right Ans - Gram-negative
Which bacterial toxins can cause fever, inflammation, and stick when they are
released from Gram-negative bacteria? Right Ans - Endotoxins
What connects bacterial cells during the exchange of genetic material?
Right Ans - Pilus
Which component helps bacterial cells attach to host blood cells and cause
clumping? Right Ans - Pilus
Which fungal structure can form long, extended filaments, and can regrow
from fragments that have broken off allowing some fungi to survive and
spread disease rapidly within a single host? Right Ans - Hypa
What is produced by bacteria such as Helicobacter pylori to survive the
extremely low pH environment of the human stomach? Right Ans - Urease
Which term describes the movement of bacterial cells towards a substance,
such as an important nutrient? Right Ans - Positive chemotaxis
Which virus subgroup requires the enzyme reverse transcriptase for
replication of its nucleic acid? Right Ans - Single-stranded RNA virus
, Which type of virus contains only the nucleocapsid? Right Ans - Naked
Which type of organism causes illnesses such as amoebic dysentery and
malaria? Right Ans - Protozoa
Which parasite's embryo enters the human intestines through the ingestion of
undercooked cow's meat? Right Ans - Tape worm
Which phylum of fungi produces a saclike structure that releases spores
during sexual reproduction? Right Ans - Ascomycota
Which phylum of fungi includes the edible mushrooms humans eat, as well as
toadstools, rusts, and smuts? Right Ans - Basidiomycota
Which stage or period of the disease process is a patient in who is
experiencing malaise and muscle aches? Right Ans - Prodromal period
A patient presents with symptoms that have become increasingly worse over
the course of the week, including a spreading rash and diarrhea.
Which phase of disease is this patient in? Right Ans - period of invasion
How does a mutualistic organism typically interact with a healthy host?
Right Ans - It benefits the host
If a commensal species lives on or in a host organism, how will that species
interact with the host? Right Ans - The commensal species will benefit, but
the host will not be harmed.
How is cholera spread? Right Ans - Contaminated water
How is rabies transmitted? Right Ans - Direct contact
What are natural reservoirs for the pathogen that causes malaria? Right
Ans - Insects and monkeys
What is the natural reservoir for the pathogen that causes cholera? Right
Ans - Water
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