1. Which of the following total magnification (on a compound light microscope) must be used to identify bacterial morphology A. 100 x B. 400 x C. 300 x D. 1000 x

Human Anatomy & Physiology (11th Edition)
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Author:Elaine N. Marieb, Katja N. Hoehn
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Need help with the following questions for microbiology

1. Which of the following total magnification (on a compound light microscope) must be used to identify bacterial morphology

A. 100 x

B. 400 x

C. 300 x

D. 1000 x

2. You learned about the Bio Safety Level (BSL) categories in Microbiology Lab, which of the following BSL category is safe to processed in a lab on open counter top?

A. BSL3

B. BSL2

C. BSL1

D. BSL4

E. BSL1 and BSL2

3. Streak Plate method is used for

A. all choices are correct

B. used to isolate bacteria from a mixed culture/sample

C. is used routinely in Microbiological labs

D. is essential tool for isolation and identification of any specific bacteria

4. A selective laboratory growth medium for Gram negative bacteria will allow -------.

A. only algae to grow

B. only viruses to grow

C. only G+ to grow

D. only G- to grow

5. You learned that microbes are ubiquitous and they are part of normal flora of various body sites, however which body sites is/are supposed to be sterile enviornment.

A. urogential pasages

B. muscle tissue

C. skin

D. oral cavity

6. Yeast named cryptococcus neoformans is an opportunist that causes meningitis in AIDS patients.

True

False

7. Which of the following means to "introduce microbes into a growth medium".

A. Sterile

B. inoculation

C. turbidity

D. pathogen

E. incubation

8. Which of the following represents the correct order of reagents used in Gram staining procedure?

A. Safranin, Crystal Violet, Iodine, Alcohol

B. Crystal Violet, Iodine, Alcohol, Safranin

C. Safranin, Crystal Violet, Iodine, Alcohol

D. Alcohol, Safranin, Crystal Violet, Iodine, Alcohol

9. A single microbial colony on a culture plate would be used to start a pure culture because---------.

A. it represents all the other bacteria that were present in the culture

B. it represents the organisms of all speices present

C. it has the same oxygen and nutrient requirements

D. it represents the cells originating from a single cell/colony forming unit

10. Which of the following can survive for long periods on inanimate surfaces and hence be transmitted to healthy people, if someone has contaminated the work area with these microorganisms.

A. Serratia marcescens

B. Mycobacterium tuberculosis

C. E. coli

D. Cold virus

E. Staphylococcus epidermidis

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