Foundations In Microbiology 9th
Edition By Talaro Chess – Test Bank
Sample Test
ch03
Student:
1. The Six I’s of studying microorganisms include all of the following except
A. inoculation.
B. incubation.
C. infection.
D. isolation.
E. identification.
2. All of the following are examples of different types of microbiological media except
A. broth.
B. enriched.
C. agar.
D. petri dish.
E. gelatin.
3. The term that refers to the purposeful addition of microorganisms into a laboratory
nutrient medium
is
A. isolation.
B. inoculation.
C. immunization.
D. infection.
E. contamination.
4. Which of the following is essential for development of discrete, isolated colonies?
A. broth medium
B. differential medium
C. selective medium
D. solid medium
, E. assay medium
5. A pure culture contains only
A. one species of microorganism.
B. bacteria.
C. a variety of microbes from one source.
D. All of the choices are correct.
E. None of the choices are correct.
6. Which of the following will result when 1% to 5% agar is added to nutrient broth, boiled and
cooled?
A. a pure culture
B. a mixed culture
C. a solid medium
D. a liquid medium
E. a contaminated medium
7. A microbiologist inoculates Staphylococcus aureus into a culture medium.
Following incubation, both
Staphylococcus aureus and Staphylococcus epidermidis are determined to be growing in
this culture.
What is the most likely explanation?
A. The microbiologist used too much inoculum.
B. The culture is contaminated.
C. The incubation temperature was incorrect.
D. The culture medium must be selective.
E. The culture medium must be differential.
8. A microbiologist inoculates Staphylococcus epidermidis and Escherichia coli into a
culture medium.
Following incubation, only the E. coli grows in the culture. What is the most likely
explanation?
A. The microbiologist used too much inoculum.
B. The culture is contaminated.
C. The incubation temperature was incorrect.
D. The culture medium must be selective.
E. The culture medium must be differential.
9. Which method often results in colonies developing down throughout the agar and some
colonies on the
surface?
A. streak plate
B. spread plate
C. pour plate
D. All of the choices are correct
E. None of the choices are correct
10. A common medium used for growing fastidious bacteria is
A. blood agar.
B. trypticase soy agar.
C. mannitol salt agar.
D. MacConkey medium.
E. a reducing medium.
11. A nutrient medium that has all of its chemical components identified and their
precise concentrations
known and reproducible would be termed
A. complex.
B. reducing.
C. enriched.
Edition By Talaro Chess – Test Bank
Sample Test
ch03
Student:
1. The Six I’s of studying microorganisms include all of the following except
A. inoculation.
B. incubation.
C. infection.
D. isolation.
E. identification.
2. All of the following are examples of different types of microbiological media except
A. broth.
B. enriched.
C. agar.
D. petri dish.
E. gelatin.
3. The term that refers to the purposeful addition of microorganisms into a laboratory
nutrient medium
is
A. isolation.
B. inoculation.
C. immunization.
D. infection.
E. contamination.
4. Which of the following is essential for development of discrete, isolated colonies?
A. broth medium
B. differential medium
C. selective medium
D. solid medium
, E. assay medium
5. A pure culture contains only
A. one species of microorganism.
B. bacteria.
C. a variety of microbes from one source.
D. All of the choices are correct.
E. None of the choices are correct.
6. Which of the following will result when 1% to 5% agar is added to nutrient broth, boiled and
cooled?
A. a pure culture
B. a mixed culture
C. a solid medium
D. a liquid medium
E. a contaminated medium
7. A microbiologist inoculates Staphylococcus aureus into a culture medium.
Following incubation, both
Staphylococcus aureus and Staphylococcus epidermidis are determined to be growing in
this culture.
What is the most likely explanation?
A. The microbiologist used too much inoculum.
B. The culture is contaminated.
C. The incubation temperature was incorrect.
D. The culture medium must be selective.
E. The culture medium must be differential.
8. A microbiologist inoculates Staphylococcus epidermidis and Escherichia coli into a
culture medium.
Following incubation, only the E. coli grows in the culture. What is the most likely
explanation?
A. The microbiologist used too much inoculum.
B. The culture is contaminated.
C. The incubation temperature was incorrect.
D. The culture medium must be selective.
E. The culture medium must be differential.
9. Which method often results in colonies developing down throughout the agar and some
colonies on the
surface?
A. streak plate
B. spread plate
C. pour plate
D. All of the choices are correct
E. None of the choices are correct
10. A common medium used for growing fastidious bacteria is
A. blood agar.
B. trypticase soy agar.
C. mannitol salt agar.
D. MacConkey medium.
E. a reducing medium.
11. A nutrient medium that has all of its chemical components identified and their
precise concentrations
known and reproducible would be termed
A. complex.
B. reducing.
C. enriched.
