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1What two types of light microscopes will you be using today?


2What is the function of a light microscope?


3The ability to distinguish two points that are close together is called .


4 is the amount of difference between the lightest and darkest parts of an image.


5


stage
6


fine focus knob
7


objective
8


condenser lens
9


ocular
10


light source
11


condenser iris diaphragm
12


coarse focus knob
Answer choices:
A)illuminates the specimen by passing light through the specimen
B)regulates the amount of light reaching the specimen
C)moves the objective lens toward or away from the specimen
D)focuses light onto a specimen
E)lens nearest to the object being viewed that magnifies specimen
F)lens that you look through that magnifies specimen
G)supports slides
H)adjusts specimen-to-objective distance slightly to allow for exact focus


13What is the total magnification when using a 10x objective and a 10x ocular?


14Most light microscopes are ________, meaning that the image will remain nearly focused when changing objectives.
A)parfocal
B)paracentered
C)perifocal
D)pericentered


15List three rules of microscope care.


16When viewed with a microscope, the size of specimen can be measured with the aid of a micrometer.
A)True
B)False


17Define field-of-view.


18What is the area of the field-of-view if the diameter of the field-of-view is four millimeters?


19Define depth of field.


20How do you make a wet mount?


21When would it be advantageous to use a dissection microscope?
A)when viewing specimens that are opaque
B)when viewing specimens that are too large to see with a compound microscope
C)when a larger working distance is required
D)all of the above


22A dissecting scope provides a three-dimensional image with a smaller depths of field than a compound microscope.
A)True
B)False





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