BACTE LEC Ate Patricia Fb Flashcards
Test for capsules
Neufeld - Quellung test
What are the capsules made of?
Polysaccharide
Exception to the capsule component
Bacillus anthracis; glutamic acid
This gives shape to bacteria and is the basis for gram staining
Cell wall
Characteristics of a gram + bacteria (4)
Thick peptidoglycan, teichoic acid, insoluble to alcohol, exotoxin
Characteristics of gram neg bacte (4)
Lipopolysaccharide, thin peptidoglycan, periplasm, soluble to alcohol
This spp has no cell wall
Mycoplasma
Site of energy synthesis of bacteria
Plasma membrane
regulates transfer of nutrients in and out the cell
Plasma membrane
Plasmid are
Extrachromosomal DNA that carry antibiotic resistance genes
Ribosome size
Bacteria
Fungi
70s
80s
Viruses have no ribosomes t or f
T
Sex pili is for
Gene transfer
Common pili is used for
Bacterial adherence
Flagella terms
Monotrichous Atrichous Amphitrichous Lophotrichous Peritrichous
One polar flagella No flagella 2 polar flagella Tufts Flagella around
Spirochetes are axial filaments that
Corkscrew movement
Examples of aerotolerant organisms (3)
Streptococcus pyrogenes, Enterococcus faecalis, Lactobacillus
Most clinically significant organisms are ____ anaerobes
Facultative
Two examples of bacteria that are killed by normal concentration of O2
Bacteroides, Clostridium
Oxy req
Needs oxygen, SOD, and catalase
Strict aerobe
Strict aerobe bacterias
Pseudomonas, Neisseria, Brucella, Bordetella, Francisella
Oxy req
Require less O2
Microaerophilic
Examples of microaerophilic
Campylobacter, Treponema pallidum
pH requirement of pathogenic bacteria
7.2-7.4
Moisture of bacteria
Humidophilic
Blood bag contaminant bacteria
Yersinia enterocolitica
Coleslaw food poison
Listeria monocytogenes
Nutritional requirement classification of bacteria (2)
Autotroph, heterotrophs
Inorganic compound as source of carbon
Autotroph
Glucose as source of carbon
Heterotrophs
Psycrophilic temp
0-20 C
NaCl content of S. aureus
7.5%
6.5 % NaCl content
E. faecalis
Acidophilic bacteria
Lactobacillus
Basophilic bacteria
Vibrio