MCB4403 EXAM 3 STUDY SET
WITH COMPLETE SOLUTION
causes lyme disease - ANSWER Borrelia burgdorferi
causes leptospirosis - ANSWER Leptospira
causes syphillis - ANSWER Treponema pallidum
major human pathogens of the Actinobacteria phylum - ANSWER Corynebacterium
Mycobacterium
characteristics of the phylum Bacteroidetes - ANSWER Closely related to environmental
bacteria Chlorobi,
Some of the most important bacteria in breaking down polysaccharides in the human
gut,
Obligate anaerobes
Listeria characteristics - ANSWER Take control of host cytoskeleton,
Are an important food-borne pathogen of humans
Invade host cells,
Are gram positive
Bacteria that can release LPS/endotoxin as they degrade: - ANSWER Escherichia coli
Legionella pneumonphila
Neisseria meningitidis
Shigella
2 most dominant bacterial phyla in the human/mammal gut - ANSWER Bacteroidetes
Firmicutes
Archael cell envelopes - ANSWER Protein S-layer
Outer membrane
Pseudopeptidoglycan (pseudomurein)
have histones to organize DNA - ANSWER Eukaryotes
Archaea
, repurpose chloroplasts originally from their endosymbiont - ANSWER Eukaryotic
Apicomplexans
Eukaryotic phylum Apicomplexan pathogens - ANSWER Cryptosporidium hominis
Cyclospora cayetanensis
Plasmodium falciparum
Toxoplasma gondii
Eukaryotic phylum Euglenozoa pathogens - ANSWER Leishmania major
Trypanosoma brucei
characteristics of most fungi - ANSWER Have cell walls that are composed of chitin
"Move" in a certain direction by extending hyphae
Are more likely to be opportunistic pathogens rather than primary pathogens
Have lost the flagella/cilia in most lineages
Shiga toxin characteristics - ANSWER exotoxins produced by enteric bacteria; Shigella
flexneri and EHEC E. Coli; cause extensive damage to the human gastrointestinal tract;
protein synthesis disruptors
Staphylococcus aureus exfoliative toxin characteristics - ANSWER blistering of the skin;
protease that acts as a cell-cell adherence disruptor
E. Coli hemolysin characteristics (not related to shiga toxin) - ANSWER bacterial
exotoxin that acts as a cell membrane disruptor
Enteropathogenic E. coli (EPEC) characteristics - ANSWER secrete the Tir protein into
the host cell membrane; use the type III protein secretion system
type IV protein secretion system characteristics - ANSWER similar to bacterial
conjugation; used by pathogens, like Agrobacterium tumefaciens, to inject both DNA
and proteins into host cells
Bordatella pertussis characteristics - ANSWER Gram negative; Beta proteobacteria;
Whooping cough; bacteria attaches to the cilia inhibiting its movement;
Candida albicans characteristics - ANSWER Skin infection, vaginal yeast infection;
Usually in elderly; Causes thrush on tongue (fungal); Echinocandins: fungal cell wall
biosynthesis
Chlamydia trachomatis characteristics - ANSWER Lack cell wall (planctobacteria) -
"gram (-)"; Obligate intracellular bacteria - Small elementary bodies, grows inside the
cell; Own phylum - previously thought to be fungi
WITH COMPLETE SOLUTION
causes lyme disease - ANSWER Borrelia burgdorferi
causes leptospirosis - ANSWER Leptospira
causes syphillis - ANSWER Treponema pallidum
major human pathogens of the Actinobacteria phylum - ANSWER Corynebacterium
Mycobacterium
characteristics of the phylum Bacteroidetes - ANSWER Closely related to environmental
bacteria Chlorobi,
Some of the most important bacteria in breaking down polysaccharides in the human
gut,
Obligate anaerobes
Listeria characteristics - ANSWER Take control of host cytoskeleton,
Are an important food-borne pathogen of humans
Invade host cells,
Are gram positive
Bacteria that can release LPS/endotoxin as they degrade: - ANSWER Escherichia coli
Legionella pneumonphila
Neisseria meningitidis
Shigella
2 most dominant bacterial phyla in the human/mammal gut - ANSWER Bacteroidetes
Firmicutes
Archael cell envelopes - ANSWER Protein S-layer
Outer membrane
Pseudopeptidoglycan (pseudomurein)
have histones to organize DNA - ANSWER Eukaryotes
Archaea
, repurpose chloroplasts originally from their endosymbiont - ANSWER Eukaryotic
Apicomplexans
Eukaryotic phylum Apicomplexan pathogens - ANSWER Cryptosporidium hominis
Cyclospora cayetanensis
Plasmodium falciparum
Toxoplasma gondii
Eukaryotic phylum Euglenozoa pathogens - ANSWER Leishmania major
Trypanosoma brucei
characteristics of most fungi - ANSWER Have cell walls that are composed of chitin
"Move" in a certain direction by extending hyphae
Are more likely to be opportunistic pathogens rather than primary pathogens
Have lost the flagella/cilia in most lineages
Shiga toxin characteristics - ANSWER exotoxins produced by enteric bacteria; Shigella
flexneri and EHEC E. Coli; cause extensive damage to the human gastrointestinal tract;
protein synthesis disruptors
Staphylococcus aureus exfoliative toxin characteristics - ANSWER blistering of the skin;
protease that acts as a cell-cell adherence disruptor
E. Coli hemolysin characteristics (not related to shiga toxin) - ANSWER bacterial
exotoxin that acts as a cell membrane disruptor
Enteropathogenic E. coli (EPEC) characteristics - ANSWER secrete the Tir protein into
the host cell membrane; use the type III protein secretion system
type IV protein secretion system characteristics - ANSWER similar to bacterial
conjugation; used by pathogens, like Agrobacterium tumefaciens, to inject both DNA
and proteins into host cells
Bordatella pertussis characteristics - ANSWER Gram negative; Beta proteobacteria;
Whooping cough; bacteria attaches to the cilia inhibiting its movement;
Candida albicans characteristics - ANSWER Skin infection, vaginal yeast infection;
Usually in elderly; Causes thrush on tongue (fungal); Echinocandins: fungal cell wall
biosynthesis
Chlamydia trachomatis characteristics - ANSWER Lack cell wall (planctobacteria) -
"gram (-)"; Obligate intracellular bacteria - Small elementary bodies, grows inside the
cell; Own phylum - previously thought to be fungi
