Microbial Nutrition and Growth Flashcards
21 % O2, 0.03% CO2
use oxygen
Obligate aerobic: Bordatella, Pseudomonas, Brucella
with super oxidase dismutase and catalase
Physiologic Requirement: O2 requirement; AEROBE
0% O2, 5-10% H2, 5-10% CO2
Physiologic Requirement: O2 requirement; ANAEROBE
die in the presence of O2
Clostridium and Bacteroides
Physiologic Requirement: O2 requirement; ANAEROBE: OBLIGATE
not require oxygen but grows better in O2
Escherichia coli, Streptococci, Staphylococci
Physiologic Requirement: O2 requirement; ANAEROBE: FACULTATIVE
Most clinically significant organisms are…
FACULTATIVE ANAEROBE
ANAEROBES contain…
superoxide dismutase and catalase which are protective enzymes against the toxic effect of oxygen
organism requires 2-10% O2
Campylobacter (5% O2, 10% CO2, 85% N2) and Treponema pallidum
Physiologic Requirement: O2 requirement; MICROAEROPHILE
grows well in the presence of oxygen
Streptococcus pyogenes, Enterococcus fecalis
Physiologic Requirement: O2 requirement; AEROTOLERANT ANAEROBE
5% CO2, 15% O2
0.03% CO2 : needed by Aerobic bacteria
require 5-10% CO2 : Haemophilus influenza, Neisseria gonorrheae and Streptococcus pneumoniae
Physiologic Requirement: CO2 requirement; CAPNOPHILE
use CO2 as sole source of Carbon (litothrop)
Physiologic Requirement: NUTRITIONAL requirement; CARBON Source, AUTOTROPHS
use reduced, preformed, organic molecules from other bacteria (Organotroph)
Physiologic Requirement: NUTRITIONAL requirement; CARBON source, HETEROTROPHS
organism that use LIGHT
Physiologic Requirement: NUTRITIONAL requirement; ENERGY source, PHOTOTROPHS
organism that use energy produces by the oxidation of organic/inorganic compounds
Physiologic Requirement: NUTRITIONAL requirement; ENERGY source, CHEMOTROPHS
require dead organic substances
SAPROPHYTES
require substances from living
PARASITE
