WorksheetsThe Compound Microscope
Total questions: 18
Worksheet time: 9mins
A cover slip is used when making a wet mount slide for the microscope. What is the true purpose of the coverslip?
to hold the specimen in place
to protect the objective from water
to hold the water on the slide
to prevent the dirt from damaging the specimen
The microscope part that has a lens that provides secondary magnification of the specimen.
low power objective
diaphragm
eyepiece
lamp
A student measures the field of view (FOV) by focusing on the millimeter markings of a transparent ruler. She finds that the diameter of the FOV is 2 millimeters. This means that the FOV measures _____ micrometers.
2000
4
200
1
The microscope objectives are rotated using the
fine adjustment
manipulator knob
diaphragm
nosepiece
A microscope slide is sits on top of the (a)_____ and is held in place by the (b)_____
(a) platform / (b) base
(a) base / (b) holder
(a) stage / (b) slide manipulator
(a) arm / (b) nosepiece
When using high power on the classroom microscope, the total magnification is
400 x
200 x
4000 x
100 x
The shortest objective on the classroom microscope is called the lower power objective.
TRUE
FALSE
You can change the amount of light passing through the microscope by adjusting the
stage
objective
eyepiece
diaphragm
The proper way to carry a microscope is to hold the (a)_____ with one hand and support the (b)_____ with the other hand.
(a) stage / (b) base
(a) lamp / (b) eyepiece
(a) arm / (b) stage
(a) arm / (b) base
The _____ moves the stage up and down to bring the specimen into rapid focus.
coarse adjustment
slide manipulator know
fine adjustment
diaphragm
A student makes a wet mount of a sample of pond water. When looking through the microscope, he notices a protist (one-celled organism) moving around. As the student looks through the eyepiece, he sees the protist move to the top of the slide and to the right, out of the field of view. In order to see the protist again, the student should move slide
up.
further up and to the left.
down and to the left.
down and further to the right.
You can sharpen the focus of a cell using the _____ of the microscope.
fine adjustment
slide manipulator knobs
sharp adjustment
coarse adjustment
Before switching from low power to high power, it is important to move the slide so that the specimen you want to view is centered in the field of view. Which microscope part allows you to move the slide?
coarse adjustment
slide manipulator knobs
stage adjuster
fine adjustment
The body of the microscope is supported by the
stage
nosepiece
arm
diaphragm
Primary magnification is provided by the
eyepiece lens
field of view lens
stage lens
objective lens
The diameter of the field of view for an objective measures at 1000 micrometers. A student is instructed to estimate the length of a large plant cell. She estimates that two cells will fit lengthwise across the field of view. How long is the cell in micrometers?
2000 micrometers
1000 micrometers
500 micrometers
100 micrometers
Which of the following steps are part of the microscope shutdown process in Riss's biology class? Click all that apply.
open the diaphragm
lower the stage
leave slide on the stage
move the stage all the way to the left
click the scanning objective in place
When preparing a wet mount, why should you use a probe to lower the coverslip at an angle?
to push cells to the edge of the coverslip
to flatten the specimen under the coverslip
to make sure dirt and dust are pushed to the edge of the coverslip
to prevent the formation of air bubbles under the coverslip
