Questions and Answers
What is the eyepiece or ocular in a microscope?
Where you look into the microscope.
What is the function of the body tube in a microscope?
Light passes from the objective lens to the eyepiece through this part.
What is the nosepiece in a microscope?
The part that holds the objective lenses and can be rotated to change magnification.
What is the coarse adjustment knob used for?
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What does the fine adjustment knob do?
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What are stage clips?
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What is the purpose of the aperture in a microscope?
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What does the diaphragm do in a microscope?
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What is a slide in the context of microscopy?
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What part of the microscope supports the upper portion?
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What is the function of the lamp or mirror in a microscope?
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Where is the lamp or mirror located in a microscope?
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What are objective lenses used for in a microscope?
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What is the base of a microscope?
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What is the stage in a microscope?
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What is the high power objective lens magnification?
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What is the total magnification of a high-power objective lens with a 10x eyepiece?
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What magnification does the low power objective lens provide?
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What is the scanning objective lens used for?
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What is the oil immersion lens?
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What does the term 'power' refer to in microscopy?
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What is a cover slip?
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How do you calculate magnification on a microscope?
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How does the view of a specimen change as you increase the power of magnification?
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What are microscope drawings?
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Match the following parts with their functions:
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What are four important things to include in a microscope drawing?
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Study Notes
Microscope Anatomy
- Eyepiece/Ocular: The lens you look through to observe the specimen.
- Body Tube: Transmits light from the objective lens to the eyepiece, separating the nosepiece from the eyepiece.
- Nosepiece: Holds and allows rotation of objective lenses for changing magnification.
Focusing Mechanisms
- Coarse Adjustment Knob: Large knob used to initially focus the microscope by moving the stage vertically.
- Fine Adjustment Knob: Used for precision focusing after the specimen is initially focused, adjusting the stage slightly.
Stage Components
- Stage Clips: Hold the glass slide securely in place on the stage.
- Aperture: An opening in the stage allowing light to pass through to the slide.
- Diaphragm: Controls the amount of light passing through the aperture.
Specimen Support
- Slide: Thin glass piece that supports the specimen for observation.
- Stage: Flat surface where the slide is placed for viewing.
Lighting and Support
- Lamp or Mirror: Projects light through the aperture for clear visibility of the specimen.
- Microscope Legs: Support the instrument, housing the lamp or mirror.
Objective Lenses
- Objective Lens: Multiple lenses mounted on the nosepiece, each offering different levels of magnification.
- High Power Objective Lens: Typically 40x magnification, ideal for viewing fine details, yielding a total magnification of 400x with a 10x eyepiece.
- Low Power Objective Lens: Generally 10x magnification, useful for observing and analyzing slides.
- Scanning Objective Lens: The shortest lens, usually 4x, providing the lowest magnification, resulting in 40x total magnification with a 10x eyepiece.
- Oil Immersion Lens: 100x lens that provides the highest magnification (1000x with a 10x eyepiece), used with immersion oil.
Miscellaneous
- Base: The bottom support structure of the microscope.
- Power: Refers to the magnification level of a lens.
- Cover Slip: A glass or plastic piece placed over the specimen on a slide.
Calculating Magnification
- Total magnification is calculated by multiplying the power of the eyepiece by the power of the objective lens.
Specimen Observation Changes
- Increasing magnification results in seeing less of the specimen at once, but with enhanced detail.
Microscope Drawings
- Require accuracy and details, should include four important components: border, accurate depiction, title, and total power of magnification.
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Description
Test your knowledge of the different parts of a microscope with these anatomy flashcards. Learn definitions and functions of essential components such as the eyepiece, body tube, and nosepiece. Perfect for students in biology or any microscopy-related studies.
