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UTA Micro Exam 2 | Questions And Answers Latest {} A+ Graded | 100% Verified
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UTA Micro Exam 2 | Questions And Answers Latest {} A+ Graded | 100% Verified
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UTA Micro Exam 2 | Questions And Answers Latest {2024- 2025} A+ Graded | 100%Verified
Prokaryote Habitats - ubiquitous: hot springs, ice caps, deep ocean, mucosal surfaces
Why are prokaryotes so important - v adaptive & resilient, stability of ecosystems, carbon & nitrogen
fixation, environmental cleanup
Mutualism - Pop. A and B are benefitted
ex. gut nutrient metabolism
Amensalism - Pop. A is harmed and B is unaffected
ex. antimicrobial defense on skin
Commensalism - Pop. A is benefitted and B is unaffected
ex. skin cells as food source
Neutralism - Both pop. are unaffected
ex. spores in soil
Parasitism - Pop. A is benefitted and B is harmed
ex. tuberculosis
Prokaryote taxonomy - molecular, biochemical, microscopy, and nucleotide sequences is best approach
for classification
Gram Negative - -proteobacteria
-spirochete
-CFB group
-plantomycetes
, -phototrophic
Proteobacteria - -alphaproteobacteria
-betaproteobacteria
-deltaproteobacteria gammaproteobacteria
epsilonproteobacteria
Alphaproteobacteria - -oligotroph (live in low nutrient environment)
-obligate intracellular bacteria
-rickettsia: pleomorphic, cocci rods or threads, rocky mountain spotted fever and typhus
-chlamydia: coccoid or ovoid, chlamydia
Betaproteobacteria - -eutrophs (require many nutrients)
-Bordetella: coccobacillus, aerobic, fastidious, whooping cough
-Neisseria: coccus forming pairs, gonorrhea, meningitis, require moisture and high concentration of CO2,
oxidase positive
Deltaproteobacteria - -sulfate reducing
-Myxobacterium: coccoid forming colonies
-Desulfovibrio: comma shaped rod, reduce sulfur
-Bdellovibrio: comma shaped rod, obligate aerobes, parasitic infecting other bacteria
Gammaproteobacteria - -most diverse
-Pseudomonas Aeruginosa: bacillus, aerobic, infections of wounds, urinary, and respiratory tracts
-Pasteurella Haemolytica: pneumonia in animals
-Haemophilus Influenza: bacillus, pleomorphic, upper and lower respiratory infections
-Vibrio: curved rod shaped, alkaline environments, motile, hypersecretion of electrolytes in gasto. tract
-Legionella Pneumophila: legionnaires disease, bacillus
-Enterobacter: bacillus, coliforms, noncoliforms, urinary and respiratory tract infection
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