Microscope Quiz Study Guide ●
Eyepiece​
– Contains the magnifying lens you look through ●
Body tube​
– Maintains the proper distance between the eyepiece and the objective lenses ●
Arm​
– Connects pieces of microscope; used to carry the microscope along with the base ●
Stage clips​
– Holds the slide in place ●
Coarse adjustment​
– Moves the stage up and down for focusing the image; used with the scanning objective ●
Fine adjustment​
– Moves the stage slightly to sharpen the focus of the image; used only with the high power objective lens ●
Power switch​
– Provides electricity in order to operate the microscope ●
Nosepiece​
– Holds the scanning, low, and high power objective lenses ●
Objective lenses​
– Magnifies the specimen on the slide o
Scanning objective​
­ Provides the greatest field of view ●
Stage opening​
– Allows light to go through the stage, specimen, and the lenses ●
Stage​
– Supports the slide being viewed; should be closest to the scanning objective lens ●
Diaphragm​
– Wheel under the stage that regulates the amount of light ●
Light source​
– Provides light necessary to view the specimen ●
Base​
– Holds and supports the microscope, used to carry the microscope along with the arm ●
Janssen​
– Given credit for developing the first microscope ●
Hooke​
– Coined the word ‘cell’ ●
Leeuwenhoek​
– First person to describe bacteria, observed pond water ●
Magnification​
­ Enlarging the view of an object ●
Resolution​
­ Ability to clearly distinguish individual parts of the object being magnified ●
Field of view​
­ What you are able to see when looking through the eyepiece Different types of microscopes ●
Simple ­ Has the lowest magnifying power, ●
Compound ­ Uses light to view and magnify an object, uses multiple lenses to view images ●
Electron ­ Has the highest magnifying power, To calculate total magnification power, multiply the eyepiece times the objective lens Total magnification = eyepiece (10x) X objective lens (4x, 10x, or 40x) ***Be able to label the parts of a microscope! Refer to your microscope diagram WS