Exam 2 UTA Microbiology Questions
and Answers
Why can prokaryotes be found almost anywhere?
✓ ~~~ They are able to switch their metabolic or respiration methods
Describe mutualism
✓ ~~~ Both organisms benefit
Describe amensalism
✓ ~~~ One organism is harmed, the other is unaffected
Describe commensalism
✓ ~~~ one organism benefits and the other is unaffected
Describe neutralism
✓ ~~~ both organisms are unaffected
Describe parasitism
✓ ~~~ One organism benefits and the other is harmed
What is the difference between a resident and transient microbe?
✓ ~~~ A resident microbe is constantly living in/on our bodies
A transient microbe is temporary
What does the gram negative phyla include?
, ✓ ~~~ -proteobacteria
-spirochete
-FCB group
-planctomycetes
What does the gram postivie phylum include?
✓ ~~~ -actinobacteria
-firmicutes
What makes up the bulk of all gram negative bacteria?
✓ ~~~ Proteobacteria
-alpha
-beta
-gamma
-delta
-epsilon
Define oligotrophs
✓ ~~~ organisms that live in a low nutrient environment
What does it mean for a microbe to be an obligate intracellular organism?
✓ ~~~ the microbe MUST BE in a host cell for metabolic function to occur
, What is the causative agent of Rocky Mountain spotted fever and typhus fever?
✓ ~~~ Rickettsia spp.
What is the causative agent for lymphogranuloma venereum (STD)?
✓ ~~~ Chlamydia spp.
What is the class of the Rickettsia spp.?
✓ ~~~ Alphaproteobacteria
What is the class of Chlamydia spp.?
✓ ~~~ Alphaproteobacteria
Which class is full of oligotrophs?
✓ ~~~ Alphaproteobacteria
What is the causative agent for whooping cough?
✓ ~~~ Bordetella spp.
What class does Pseudomonas belong to?
✓ ~~~ Gammaproteobacteria
What does it mean to be a eutroph?
✓ ~~~ The microbe requires a nutrient rich environment to survive
Which class is made up of eutroph?
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