chapter 1,introduction Flashcards
Mention the sex major phenotypic classifications of bacteria.
true bacteria spirochetes mycoplasms ricketisae and chlamydiea actinomycetes
Mention some characteristics of spirochetes.
has modified outer sheath and axial filament
chemohetrotrophs.
free living, symbiotic, parasitic.
pathogenic genera; BTL
compare bw borrellia, treponema, leptospira.
1_ large spirals, wide irregular and few coils
2_thin, small regular coils
3_long, thin, tightly coiled.
compare bw borrellia, treponema, leptospira.
1_ large spirals, wide irregular and few coils
2_thin, small regular coils
3_long, thin, tightly coiled.
what’s the dimension of the majority of bacteria?
0.2-5 m
cocci: 0.5-2m
Bacilli:0.25-1 m
what’s the dimension of the majority of bacteria?
0.2-5 m
cocci: 0.5-2m
Bacilli:0.25-1 m
give two examples for oxidative bacteria to carbs.
pseudomonas, micrococcus
give two examples for fermentation to carbs bacteria.
E. coli, S. aureus
Staph. epidermis, staph. saprophyticus belong to which group hemolysis, and what is their shape?
non hemolytic
staphylococci
give an example for the obligate aerobes
M. tuberclosis
psedumonas aeruginosa
classify clostidium ssp according to gram stain, and oxygen demand.
gram stain positive bacilli
obligate anaerobic
give an example for aerotolerant anaerobes?
C. perfringes.
give the accurate T for: 1_Thermophiles 2_hyperthermophiles 3_mesophiles 4_psycrotrophic 5_psychrophilic
1_45-60...45 optimum 2_abov 60 3_20-45 4_7 optimal T is higher 5_10--15
give the accurate T for: 1_Thermophiles 2_hyperthermophiles 3_mesophiles 4_psycrotrophic 5_psychrophilic
1_45-60...45 optimum 2_abov 60 3_20-45 4_7 optimal T is higher 5_10--15
give an example for both acidophiles and alkaliphiles, and their ph values?
lactobacilli ph =4
vibrio cholera ph=8\9
Give the atmospheric pressure for each:
1_barophils
2_barotolerant
3_extreme barophile
1- above 400
2-can withstand in 400 but prefer 1
3-above 700
give the NACL percent with an example for: 1_mild halophiles 2_moderate 3_extreme 4_halotolerant
1_1_6% erythrobactor flavus.
2_6-15% S.aureus,enterococcus.
3_15_30% salinibactor ruber.
4_moderate or better absence _alteromonas, lactobacilli, bacillus myxococcus, pedicoccus, cyanobacteria.
mention the characteristics of E. coli.
1_gram nigitive bacilli 2_non fastidious 3_rapid growth 4_non pigment producer 5_non halophile 6_ferment carbs 7_non spore forming
