QUESTION 23 After inoculating an organism to EMB agar and incubating, you observe growth, but the colonies do not change

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: Question 23 After Inoculating An Organism To Emb Agar And Incubating You Observe Growth But The Colonies Do Not Change 1 (25.71 KiB) Viewed 54 times

QUESTION 23 After inoculating an organism to EMB agar and incubating, you observe growth, but the colonies do not change color. What can you conclude about the organism? Choose ALL correct answers: a. The organism ferments lactose rapidly b. The organism ferments lactose slowly c. The organism is Gram-negative d. The organism does not ferment lactose e. The organism is Gram-positive QUESTION 24 After inoculating an organism to EMB agar and incubating, you observe growth, and the colonies become metallic green. What can you conclude about the organism? Choose ALL correct answers: a. The organism ferments lactose slowly b. The organism does not ferment lactose c. The organism ferments lactose rapidly d. The organism is Gram-positive e. The organism is Gram-negative
QUESTION 25 After inoculating an organism to EMB agar and incubating, you observe growth, and the colonies become pink/violet. What can you conclude about the organism? Choose ALL correct answers: a. The organism is Gram-positive b. The organism does not ferment lactose c. The organism ferments lactose slowly d. The organism ferments lactose rapidly e. The organism is Gram-negative QUESTION 26 After inoculating an organism to EMB agar and incubating, you observe no growth or color change. What can you conclude about the organism? Choose ALL correct answers: a. The organism is Gram-negative b. The organism ferments lactose rapidly c. The organism ferments lactose slowly d. The organism is Gram-positive e. The organism does not ferment lactose
QUESTION 27 EMB agar is routinely used in clinical labs as well as in environmental microbiology. Which of the following organisms would grow and produce a metallic green color on EMB? O a. Staphylococcus aureus O b. Escherichia coli O c. Streptococcus pyogenes O d. Klebsiella pneumoniae QUESTION 28 Blood agar is a common enriched differential medium. It is not selective. What component of blood agar makes it an enriched media? O a. Yeast extract O b. None of the above c. Beef heart infusion O d. Blood
QUESTION 29 What component of blood agar makes this media differential? a. None of the above b. Beef heart infusion c. Yeast extract d. Blood
The final medium that you are learning about in this lab is DNase agar. This differential medium serves as a common biochemical test that allows us to determine whether or not a bacterium produces an extracellular enzyme called DNase that hydrolyses DNA in the environment. DNase agar is not selective. Morton Publishing Company
Morton Publishing Company What component(s) of DNase agar make(s) this media differential? Choose ALL correct answers: a. Tryptose b. DNA c. Methyl green d. Sodium chloride