4 phase dilution streaking - CORRECT ANSWER --The goal of this method is to isolate a
colony or clone from one culture
-Most common method
-Only deals with one culture
-Sample is plated in four different streaks or phases, each phase more dilute than the last
Acidophiles - CORRECT ANSWER --...
-Can differentiate between streptococcus strains (alpha, beta, and gamma hemolysis)
Characteristics of agar - CORRECT ANSWER ✔✔ --Cannot be digested by microbes
-Dissolves at 100C
-Solidifies below 40C
-Temperature must be >100C to melt
Chemoautotrophs - CORRECT ANSWER ✔✔ --Organisms that use chemicals as a source of
energy and carbon dioxide as a source of carbon
-Hydrogen, sulfur, and nitrifying bacteria, some archaea
Chemoheterotrophs - CORRECT ANSWER ✔✔ --Organisms that use chemical compounds as a
source of energy and organic compounds as a source of carbon
-Most animals, fungi, and protozoa and many bacteria
Chocolate Agar - CORRECT ANSWER ✔✔ --Enriched, non-selective, non-differential
derivative of blood agar
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