STUDY GUIDE EXAM 1 Flashcards
Bacillus cereus
Gm +
Bacillus subtilis
Gm +
Clostridium spp.
Gm+
Corynebacterium xerosis
Gm +
Enterobacteria aerogenes
Gm -
Enterococcus faecalis
Gm -
Escherichia coli
Gm -
Pseudomonas aeruginosa (BSL2)
Gm-
Micrococcus luteus
Gm+
Mycobacterium smegmatis
Gm +
Salmonella typhymurium
Gm+
Serratia marcescens
Gm-
Staph aureus (BSL2)
Gm+
Staph epidermidis
Gm+
Strep mitis
Gm+
Strep mutans
Gm+
Strep salivarius
Gm+
Strep sanguis
Gm+
special methods used to minimize contamination when handling microorganisms
aseptic technique
microorganisms are transferred from one medium to another for fresh growth
subculturing
GRAM STAIN: what is the primary stain?
crystal violet
GRAM STAIN: what is the mordant?
iodine
GRAM STAIN: what is the destain?
alcohol wash
GRAM STAIN: what is the counterstain?
safranin
GRAM STAIN: what species are used?
Staph aureus +
E. coli -
B. cereus +
ACID FAST STAIN: what is the primary stain?
carbol fuchsin + triton X detergent
ACID FAST STAIN: what is the destain?
acid alcohol
ACID FAST STAIN: what is the counterstain?
methylene blue
ACID FAST STAIN: species
M. smegmatis
staph aureus
ACID FAST STAIN: what color do acid-fast organisms stain?
red/pink
ACID FAST STAIN: what color do non-acid fast organisms stain?
blue
SPORE STAIN: primary stain
malachite green
SPORE STAIN: destain
heat/water
SPORE STAIN: counterstain
safranin
SPORE STAIN: species
clostridium & bacillus
SPORE STAIN: what color do the spores remain with heat?
malachite green
CAPSULE STAIN: primary
crystal violet
CAPSULE STAIN: counterstain
copper sulfate
CAPSULE STAIN: species
Klebsiella pneuonia