3/6 PL Quiz Flashcards
The ability or inability to live in the presence of oxygen
Aerotolerance
Where are aerobic located near
Top of the tube
Where are anaerobes located in tube
Bottom
Organisms that require oxygen for aerobic respiration
Obligate (strict) aerobes
Grow in the presence or absence of oxygen
Facultative anaerobes
These survive only in environments containing lower than atmospheric levels of oxygen
Microaerophiles
These can only survive if carbon dioxide levels are elevated
Capnophiles
These are organisms for which even small amounts of oxygen are lethal
Obligate (strict) anaerobes
What is TSA
Tryptic soy agar
Wha are agar deeps prepared with
10 mL of medium
What does the extra depth of agar deeps ensure
That the bottom portion of the medium is anaerobic
What is FTB
Fluid thioglycollate broth
What is FTB used for
Well adapted for cultivation of strict anaerobes and microaerophiles
What are key components of FTB
Yeast extract, pancreatic digest of casein, dextrose, sodium thioglycollate, L cystine, and resazurin
What can FTB be modified for
To promote growth of a wide variety of fastidious to nonfastidious microorganisms
