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Lab Midterm
The Microscope
7
Biology
Undergraduate 2
02/23/2011

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Cards

Term
Compound Microscope
Definition
a precision instrument and should always be handled with care.
Term
Hold it at an upright position with one hand on its arm and the other supporting its base.
Definition
How do you transport the microscope?
Term
Use only special grit-free lens paper to clean the lenses. Use a circular motion to wipe the lenses, and clean all lenses before and after use.
Definition
How do you clean the lenses?
Term
Rack and pinion knob raises and lowers to vary light delivery.
Definition
What is the function of the condenser?
Term
reglates the amount of light passing through the condenser. The iris diaphragm permits the best possible contrast when viewing the specimen
Definition
What is the function of the iris diaphragm lever?
Term
To focus on the specimen.
Definition
What is the coarse adjustment knob used for?
Term
the power of the ocular lens multiplied by the power of the objective lens.
Example: 10x45 or 450
Definition
What is total magnification?
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