HumanitiesBio example #68654
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Seamus Diaz avatar Seamus Diaz
24 August 2022
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12 test answers

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question
What are advantages to using a wet mount slide preparation? Select all that apply
answer
A. There are additional advantages to viewing a living specimen. C. There are additional advantages to viewing a motile specimen. D. Wet mount slide preparation allows the viewing of specimen behavior as they interact with the environment.
question
Which of the three factors affecting image quality is altered by the light source?
answer
Contrast can be altered by light intensity and staining.
question
How do the coarse and fine focus knobs work on a brightfield microscope?
answer
The focus knobs move the stage up and down, allowing the user to move the slide into focus.
question
What is the total magnification of a specimen using the 40X objective?
answer
Total magnification is 400X.
question
Why should the fine focus knob typically be used with the 10X and 40X objective lenses?
answer
Using the coarse focus knob would result in a large change in focus, when only a small change is needed.
question
What is the advantage of starting with the 4X objective before moving to the 10X and then the 40X objective?
answer
The lower power objective has a larger field of view and is easier to focus.
question
What is important to remember when using oil immersion?
answer
Immersion oil is required for the 100X objective lens but will damage the other lenses.
question
Which side of this thermometer should be used to take metric measurements?
answer
right
question
Why is it important to know the difference between Celsius and Fahrenheit scales?
answer
because boilling and freezing water occur at very different values on each scale
question
Which side of this ruler should be used to take metric measurements?
answer
right
question
Where do you need to orient your eye level to take an accurate reading of the meniscus?
answer
exactly parrallel to the meniscus
question
How are you going to determine if iodine and/or starch diffuse across the dialysis tubing?
answer
If both starch and iodine are able to diffuse across the dialysis tubing they would mix on both sides of the membrane turning both solutions dark purple. if only iodine is able to diffuse across the membrane the solution in the dialysis tubing bag will look dark look.