Microscope
Eyepiece
Contains the ocular lens
Nose piece
Holds the objectives; rotates to change magnification
450 x
If your ocular lens is 10 x, the total magnification when using the midrange 45 x objective lens is __________.
Fine Adjustment Knob
Moves the stage slightly to sharpen the image
Light Source
Projects light through the slide
Base
Supports the microscope
Condenser
The ________ is a substage lens that concentrates light on the specimen.
Nosepiece
The _________ of the microscope carries three or four objective lenses.
Resolution
The ability to discriminate two close objects as separate is called _______________
area you see through the lenses of the microscope
The microscope field is the _____________.
Multiplying the power of the objective lens by the power of the ocular lens
The total magnification of an object can be found by _____________
much greater than the working distance for the 100 x objective lens
The working distance for a 10 x objective lens is ________.
Upright, with one hand on its arm and the other hand supporting its base
To transport a microscope, hold it ______________.
Coarse - focus knob
What focus knob should you first use to bring a specimen into focus when using the scanning lens?
Fine - focus knob
What focus knob should you use in order to make an image clear when using the 10 x and 40 x objective lenses?
Decreases
What happens to the field of view and working distance when the magnification increases?
Field of View
What you see when you look through the microscope (circular area)
Lowest
When studying a slide in a microscope, begin focusing with the ______-power objective lens in place.
Stage
When you want to study a slide under the microscope, you place it on the ________.
Scanning lens (lowest objective lens 4 x)
Which objective lens should you use when you first look at a slide?
Lowest-power, course
You begin your observations using the _______ lens and the ______ adjustment knob?
Iris Diaphragm Lever
arm attached to the base of the condenser that regulates the amount of light passing through the condenser
Working distance
distance between objective lens and slide/stage
Mechanical stage
holds slide in place for viewing
100 x
magnification of the oil immersion lens
40 x
magnification power of the high power objective lens - blue
10 x
magnification power of the low power objective lens - yellow
4 x
magnification power of the scanning lens (lowest objective lens - red)
Stage
platform the slide rests on while being viewed
Condenser
small sub-stage lens that concentrates the light on the specimen
Objective Lenses
these are found on the nosepiece and range from low to high power
Coarse Adjustment Knob
used to focus the specimen
Arm
vertical portion of the microscope connecting the base and head