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Biology Laboratory Manual, 6/e
Darrell S. Vodopich, Baylor University
Randy Moore, University of Minnesota--Minneapolis


Multiple Choice quiz for Exercise 2: The Microscope

Choose the one answer that best answers the question.



1

Always begin examining microscope slides with which power objective?
A)high
B)low
C)100X
D)It doesn’t matter which objective
2

What must be done to a specimen to increase the contrast of the structures viewed?
A)illuminated
B)stained
C)placed under a cover slip
D)thinly sliced
3

Which system consists of a camera and/or a video screen?
A)viewing and recording
B)illuminating
C)imaging
D)contrasting
4

Microscopes that are____will remain nearly focused after the low-power objective lens is changed to the high-power objective lens.
A)monocular
B)parcentered
C)parfocal
D)properly adjusted
5

At high power, always use which adjustment knob to focus the image?
A)fine
B)coarse
C)diaphragm
D)It doesn’t matter.
6

Which objective provides the greatest depth of field?
A)high
B)100X
C)low
D)This depends on if the specimen is stained.
7

Which objective provides the greatest field of view?
A)high
B)100X
C)low
D)This depends on if the specimen is stained.
8

If the ocular of a microscope is 10X and the objective is set at 100X, then what is the total magnification of the microscope?
A)10X
B)43X
C)1000X
D)430X
9

The field of view of a microscope with a 10X ocular and a 4X objective is 5mm. What is will be the field of view with a 10X objective?
A)3.14 mm2
B)20 mm
C)2 mm2
D)2mm
10

For which of the following specimens would you use a dissecting scope?
A)human skin cells
B)E. coli
C)insect mouth parts
D)newspaper print