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med micro lab final

QuestionAnswer
TSIA yellow butt glucose utilization
TSIA yellow slant lactose utilzation
TSIA black H2S production
Phenol Red Lactose Red in Presence of acid
Durham tube gas production
Eosin Methylene Blue (EMB) show lactose use with green sheen in certain bacteria
Mac Conkey Isolates Gram negative bactera
Mac Conkey tunrs purple lactose utilization
Blood Agar shows hemolysis
Alpha hemolysis slight greenish color
Beta hemolysis total digestion of RBCs, clears agar
Gama hemolysis no change in agar
Mannitol Salt Agar (MSA) isolates staph, turns yellow with staph aureus
Enterotube rapid test to identify enteric bacteria
zone of inhabition determines degree of sensitivity to a particular antibiotic or substance
Obligate Anaerobes must be grown in absence of oxygen (clostridum, actinomyces, bacteroides)
Facultative Anaerobe may grow in presence/absence of ocygen (escherichia, listeria, staph)
snyders medium turns yellow in presence of cavity-causing bacteria (strep, actinomyces, lactobacillus)
Urea Agar turns "hot pink" in presence of bacteria that produces urease
Cryptococcus pink dots on white/beige background
penicillium myclium unfocuesd pink blobs
Aspergillus conidia dark purple, looks like a dandelion flower
Pneymocysits carinii purple shapes with clear boundries
Created by: kallenpoole
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