Exam 2 Flashcards
what is the chemical equation for aerobic respiration
C6H12O6 + O2 = CO2 + H2O + energy
what are catalase + strains of gram positive cocci
micococcus
staphylococcus
some bacilli
what are the catalase - strains of gram positive cocci
enterococcus and streptococcus
what are the oxidase + strains of gram negative rods
P. aeruginosa
Neisseria
some bacillus
what are the oxidase - strains of gram negative rods
E. coli and facultative anaerobes
what are the coagulase + strains of staphylococcus
Staphylococcus aureus
what are the coagulase - strains of staphylococcus
other staph series and Micrococcus
selects for or against certain bacteria
selective
organisms have different reactions to the media
differential
salt selects for halophiles
selective msa
mannitol and phenol red differentiates staph series
differential msa
what is the location of enteric bacteria
GI tract of warm blooded animals
are enteric bacteria gram positive or negative
negative
what is the shape of enteric bacteria
rod
how does contamination of enteric bacteria happen
improper food handling
dye selects against gram positive bacteria
selective emb
lactose fermentation
differential phenol red and differential emb
starch hydrolysis differentiates species of Clostridium, Enterococcus, and Bacillus
differential starch
what is enriched blood
blood agar
varying degrees of hemolysis
differential blood agar
exotoxins that can break down RBC
hemolysis blood agar
rely on oxygen for respiration
obligate aerobe
cannot grow with oxygen present
obligate anaerobe
can use oxygen, but do not need it
facultative anaerobe
use oxygen but in little quantities
microaerophile
can tolerate oxygen and will grow in it, but do not generally use it
aerotolerant anaerobe
