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Microscope Terms Flashcards
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Microscope Terms Flashcards

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Questions and Answers

What is the magnifying power of ocular lenses (eyepieces)?

  • 5x
  • 20x
  • 15x
  • 10x (correct)
  • What does the body tube do?

    Holds nosepiece at one end and eyepiece at the other end; conducts light rays.

    What is the purpose of the arm of the microscope?

    Supports upper parts and provides a carrying handle.

    What does the nosepiece hold?

    <p>Objectives.</p> Signup and view all the answers

    What is the magnification power of the scanning objective lenses?

    <p>4x.</p> Signup and view all the answers

    What is the magnification power of low-power objective lenses?

    <p>10x.</p> Signup and view all the answers

    What is the magnification power of high-power objective lenses?

    <p>40x.</p> Signup and view all the answers

    What is the purpose of oil immersion objective lenses?

    <p>Used in conjunction with immersion oil to view objects with the greatest magnification.</p> Signup and view all the answers

    What is the function of the coarse adjustment knob?

    <p>Brings objects into approximate focus; used only with low power objective.</p> Signup and view all the answers

    What is the function of the fine adjustment knob?

    <p>Brings object into final focus.</p> Signup and view all the answers

    What is the purpose of the condenser in a microscope?

    <p>Lens system below the stage used to focus the beam of light on the object.</p> Signup and view all the answers

    What does the diaphragm control?

    <p>The amount of illumination used to view the object.</p> Signup and view all the answers

    What is the function of the light source?

    <p>An attached lamp that directs a beam of light up through the object.</p> Signup and view all the answers

    What is the base of the microscope?

    <p>The flat surface of the microscope that rests on the table.</p> Signup and view all the answers

    What does the stage do?

    <p>Holds and supports microscope slides.</p> Signup and view all the answers

    What are stage clips used for?

    <p>Hold slides in place on the stage.</p> Signup and view all the answers

    What is a mechanical stage in a microscope?

    <p>A movable stage that aids in the accurate positioning of the slide.</p> Signup and view all the answers

    Study Notes

    Microscope Parts and Functions

    • Ocular Lenses (eyepieces): Magnification power of 10x.
    • Body Tube: Connects the eye piece to the nosepiece and channels light.
    • Arm: Supports upper components; serves as a handle for carrying.
    • Nosepiece: Revolving mechanism for holding multiple objective lenses.

    Objective Lenses

    • Scanning Objective Lens: Shortest lens used for initial scanning, magnification power of 4x.
    • Low-power Objective Lens: Longer than scanning lens, provides detail with magnification of 10x.
    • High-power Objective Lens: Longest lens for higher detail, magnification power of 40x.
    • Oil Immersion Objective Lens: Contains a 95x lens, used with immersion oil for maximum magnification.

    Focusing Mechanisms

    • Course Adjustment Knob: Used for initial focus, only compatible with low power objectives.
    • Fine Adjustment Knob: Refines focus to achieve clarity on the specimen.

    Light and Stage Components

    • Condenser: Positioned below the stage, it focuses light onto the specimen for better visibility.
    • Diaphragm: Regulates light intensity to optimize viewing conditions.
    • Light Source: Provides illumination through the object being observed.

    Structural Components

    • Base: The grounded portion of the microscope that stabilizes it on the table.
    • Stage: The platform holding slides for observation.
    • Stage Clips: Keep slides secured on the stage.
    • Mechanical Stage: Facilitates precise slide positioning through adjustable mechanisms.

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    Explore essential vocabulary related to microscopes with these flashcards. Each term provides a clear definition and its significance in the context of microscopy. Perfect for students looking to enhance their understanding of microscope components.

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