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Microbiology Lab Exam #1 Study Guide Questions and Answers 100% Pass
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Microbiology Lab Exam #1 Study Guide Questions and Answers 100% Pass The total magnification of the oil immersion objective is: - 1000 Ocular/Eyepiece - Binocular microscopes have two. They magnify the image tenfold. Body - It contains mirrors that bend the light into the ocular. Nosepiece -...

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  • January 17, 2025
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  • 2024/2025
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Microbiology Lab Exam #1 Study
Guide Questions and Answers 100%
Pass


The total magnification of the oil immersion objective is: - ✔✔1000


Ocular/Eyepiece - ✔✔Binocular microscopes have two. They magnify the image

tenfold.


Body - ✔✔It contains mirrors that bend the light into the ocular.


Nosepiece - ✔✔Where the objectives are attached to.


Objectives - ✔✔Contains lenses that magnify the image. A microscope has 4x, 10x, 40x

and 100x


Arm - ✔✔It supports the nosepiece, holds on/off toggle and focus adjustment knobs.


Stage/Mechanical stage - ✔✔The black, flat platform on which your slide rests. Its the

silver apparatus that actually holds the slide and moves the slide to position it on the

stage.


Stage Adjustment knobs - ✔✔These move the the mechanical stage



Katelyn Whitman, All Rights Reserved © 2025 1

, Light Intensity Control - ✔✔This knob increases or decreases light output from the light

source.


Substage condenser - ✔✔It is made of at least two lenses that focus the light passing

through the specimen and improve image sharpness.


Aperture diaphragm control - ✔✔Controls the amount of light entering the substage

condenser from the light source.


Field diaphragm lever - ✔✔It opens and closes to increase and decrease light from the

light source. It should remain open


Light source - ✔✔The illuminator is a halogen bulb that produces light.


Base - ✔✔It holds the illuminator and supports the rest of the microscope.


Fine focus adjustment knob - ✔✔Brings the image into sharp focus. This knob raises

and lowers the stage in very small increments.


Coarse focus adjustment knob - ✔✔Moves the stage up and down by larger increments

and allows you to bring the image into focus.


Resolution - ✔✔The ability of a lens system to distinguish as separate entities objects

that are very small and very close together. It is determined by the quality of the lens

and the wavelength of light used.


Magnification - ✔✔Make a small object appear larger.



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