Lab Quiz 1: Student Safety / Exercise 1

1. Which of the following is permissible in the lab?e. none of the above
a. food
b. open toed shoes
c. mouth pipetting
d. beverages
e. none of the above

What is the significance of standardizing your focal point? Short answer

Lab Quiz 2: Exercises; 3, 5, and 7

1. Which of the following describes a thin film of bacterial cells on a microscope slide? a. stain
a. stain
b. chromophore
c. fixed
d. smear
e. broth

2. Which of the following describes a colored ion? b. chromophore
a. stain
b. chromosphore
c. fix
d. smear
e. broth

10. Why do you inoculate the swab in sterile saline before being added to broth? Short Answer


Lab Quiz 3: Exercises; 4, 11, 12, and 14

1. Which of the following would be most useful for transferring bacteria to petri dishes? d. inoculating loop
a. broth culture
b. agar slants
c. agar deep
d. inoculating loop
e. inoculating needle

2. Which of the following would be most useful for growing bacteria that require less O2? c. agar deep
a. broth culture
b. agar slants
c. agar deep
d. inoculating loop
e. inoculating needle

3. Which of the following would be used for transferring bacteria to a deep agar culture tube? e. inoculating needle
a. broth culture
b. agar slants
c. agar deep
d. inoculating loop
e. inoculating needle

5. Which of the following BEST describes the EMB agar plates? e. selective media
a. complex media
b. differential media
c. enrichment media
d. nutrient agar
e. selective media

9. Why do so many types of media and methods exist for culturing different types of bacteria? Short answer
11. What is the primary purpose of diluting bacteria? Short answer

Lab Quiz 4: Exercises; 24 & 25

4. Which of the following describes the area around an antibiotic disk with no growth? e. zone of inhibition
a. antibiotic
b. disk-diffusion method
c. minimum inhibitory concentration
d. Kirby-Bauer test
e. zone of inhibition

7. What does it mean if your antibiotic disk results in a large zone of inhibition, but a few colonies begin to grow within the clear area? Short answer

This post was edited by Stolem on Oct 8 2013 12:30am