BIO 280 Microbiology Lab Questions And Answers Rated A+.
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Course
BIO 280 Microbiology Lab
Institution
BIO 280 Microbiology Lab
BIO 280 Microbiology Lab Questions And Answers Rated A+.
Which of the following is an acceptable item of footwear for the microbiology laboratory? - correct answer. None of the above are acceptable footwear
- Sandals
- 'Crocs' style shoes without socks
- Shoes in which the toe ti...
BIO 280 Microbiology Lab Questions
And Answers Rated A+.
Which of the following is an acceptable item of footwear for the microbiology laboratory?
- correct answer. None of the above are acceptable footwear
- Sandals
- 'Crocs' style shoes without socks
- Shoes in which the toe tips are enclosed, although "toe cleavage" is seen
- Shoes with enclosed toes that have decorative holes or slits exposing toes.
Failure to wear closed-toe shoes to lab will result in: - correct answer. A grade penalty
after one "free" incident.
Long hair, loose flowing sleeves, and bracelets that dangle present a danger in the
microbiology lab because: - correct answer. They may hang down into the Bunsen
burner flame and catch fire.
Which of these is true of the policy concerning food and drink in the microbiology lab? -
correct answer. Containers of beverages, even closed, cannot be brought into the lab.
Petri dishes should be labeled on the: - correct answer. Bottom of the dish
While exposing the agar surface to the sample, the lid should be: - correct answer.
Held directly over the bottom of the petri dish.
Once labeled and inoculated, the petri dish should be placed: - correct answer. In the
rack provided, inverted.
Select the things which should be labeled on each petri dish used throughout the
course: (Select all correct answers). - correct answer. - Table#/Group#
- Specimen/organism/sample
- Date/day
, - Exercise/Ex.#
- Section#
- Initials/your name/student name
Resolution is increased by all of the following EXCEPT: - correct answer. Fine
adjustment knob
The course adjustment knob is used: - correct answer. With the scanning and low
power lenses
Oil should be placed on the slide: - correct answer. After high dry focus and before oil
immersion focus
The total magnification of the any power lens is determined by: - correct answer. The
number on the ocular multiplied by the number on the side of the objective lens
The iris diaphragm should be adjusted: - correct answer. Each time you change the
magnfication (objective lens).
Which of the following should be adjusted to fit you personally? - correct answer.
Distance between oculars (inter-pupillary distance)
The function of immersion oil is to: - correct answer. Prevent diffraction of light
Which of the following should NOT be cleaned with alcohol and lens paper after
microscope use? - correct answer. Slides without cover slips
Select the things which should be done BEFORE you begin to focus on a slide: -
correct answer. - Slide centered on stage
- Light on/plug in and turn on light
- Open the iris diaphragm to the "low power" or "10×" setting
- Stage at highest setting/stage closest to objectives
- Clean oculars and objectives with lens paper.
When using the Bunsen burner: - correct answer. Flaming is done at the top of the
smaller blue flame, which is the hottest part of the flame.
Microscope slides are cleaned with powdered cleanser: - correct answer. On both the
front and the back of the slide
Preparing a smear from broth and preparing a smear from solid media (slant) differ in: -
correct answer. Two of the above
- Whether water is added to the culture sample
- Which instrument is used to obtain the sample
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