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Microscope Terminology Flashcards
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Microscope Terminology Flashcards

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Questions and Answers

What is the term for the quality of a microscope that allows you to change objective lenses without greatly altering the focus?

  • Working Distance
  • Magnification
  • Parfocal (correct)
  • Resolution
  • What does magnification refer to?

    The ability to make an object larger.

    What is the size of field in microscopy?

    Area of the organism that can be seen using a specific objective lens.

    Define refraction.

    <p>The bending or scattering of light.</p> Signup and view all the answers

    What does resolution in microscopy refer to?

    <p>The ability of the microscope to distinguish two closely spaced objects as separate.</p> Signup and view all the answers

    What is numerical aperture?

    <p>Feature of a lens in a light microscope that allows it to gather light.</p> Signup and view all the answers

    What is working distance?

    <p>Space between the glass slide and the objective lens in position.</p> Signup and view all the answers

    What are normal flora?

    <p>Organisms that live on our body surfaces that do not normally cause disease, but are actually beneficial.</p> Signup and view all the answers

    Define transient flora.

    <p>Organisms that colonize the body for short periods of time due to recent environmental exposures.</p> Signup and view all the answers

    What is resident flora?

    <p>A kind of microbial fingerprint that represents well-established species that thrive in or on the body.</p> Signup and view all the answers

    What are pathogens?

    <p>Organisms that cause disease.</p> Signup and view all the answers

    What are opportunists in microbiology?

    <p>Organisms that are generally non-pathogenic but can take the opportunity to cause disease under certain conditions.</p> Signup and view all the answers

    Study Notes

    Microscope Terminology

    • Parfocal: Enables lens swapping without significant focus changes, maintaining clarity.
    • Magnification: The capability to enlarge the appearance of an object.
    • Size of Field: The observable area of an organism determined by the specific objective lens in use.
    • Refraction: The bending and scattering of light as it passes through different media.
    • Resolution: The microscope's ability to differentiate between two closely positioned objects, ensuring they appear as separate entities.
    • Numerical Aperture: A lens feature in light microscopy that enhances light-gathering capability for improved image quality.
    • Working Distance: The gap between the slide and the lens when in focus.

    Microbial Flora Types

    • Normal Flora: Beneficial microorganisms residing on body surfaces, typically non-pathogenic.
    • Transient Flora: Microorganisms present on the body for brief periods, influenced by environmental exposures.
    • Resident Flora: Established microbial populations that act as a unique fingerprint for individual health.

    Pathogens

    • Pathogens: Organisms responsible for causing diseases in hosts.
    • Opportunists: Generally non-pathogenic organisms that can cause disease if conditions become favorable.

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    Description

    Test your knowledge of essential microscope terminology with these flashcards. Learn definitions and concepts such as parfocal, magnification, size of field, and refraction. Perfect for students in biology or microscopy courses.

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