Biology: Microscopes and Cell Discovery
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Questions and Answers

What is the function of the body tube in a light microscope?

  • To allow you to view the image and contains the ocular lens
  • To provide light for viewing the slide
  • To support the microscope when it is carried
  • To hold the objective lens and rotate to change magnification (correct)

    • What does the term 'resolution' refer to in the context of microscopes?

  • The ability to distinguish two very close objects from each other (correct)
  • The ability to view the image and contains the ocular lens
  • The amount of light passing through the slide
  • The ability to find the specimen when using low power

    • Which part of the microscope supports and stabilizes it?

  • Base (correct)
  • Coarse Focus Knob
  • Revolving Nosepiece
  • Eyepiece

    • What is the function of the diaphragm in a light microscope?

    <p>Controls the amount of light passing through the slide</p> Signup and view all the answers

    Who used the microscope to discover cells?

    <p>Robert Hooke</p> Signup and view all the answers

    What does 'magnification' refer to in the context of microscopes?

    <p>How many times larger an image is than the actual object itself</p> Signup and view all the answers

    What is the function of the cell wall in plants?

    <p>To keep the cell rigid and protect it against mechanical stress and infection</p> Signup and view all the answers

    Which organelle is known as the powerhouse of the cell?

    <p>Mitochondria</p> Signup and view all the answers

    What is the main function of chlorophyll in plants?

    <p>Converts light energy into chemical energy</p> Signup and view all the answers

    Which type of cells contain a nucleus bound by a double membrane?

    <p>Eukaryotic cells</p> Signup and view all the answers

    What is the function of vacuoles in plant cells?

    <p>Cell storage center for functions like secretion, excretion, and storage</p> Signup and view all the answers

    Which type of cells have a simpler structure than eukaryotic cells?

    <p>Prokaryotic cells</p> Signup and view all the answers

    What is the main function of the cell membrane?

    <p>Controls what enters and leaves the cell</p> Signup and view all the answers

    What is the function of the revolving nosepiece in a light microscope?

    <p>Holds the objective lens and is able to rotate to change magnification</p> Signup and view all the answers

    What is the main function of the arm in a light microscope?

    <p>Supports and stabilizes the microscope when it is carried</p> Signup and view all the answers

    What part of the light microscope is used to make small focus adjustments, especially when using the high power?

    <p>Fine Focus Knob</p> Signup and view all the answers

    Which part of the light microscope supports the slide that is being viewed?

    <p>Stage</p> Signup and view all the answers

    What is the function of the diaphragm in a light microscope?

    <p>Controls the amount of light passing through the slide</p> Signup and view all the answers

    What does 'resolution' refer to in the context of microscopes?

    <p>The ability to distinguish two very close objects from each other</p> Signup and view all the answers

    What is the main function of the cell wall in plants?

    <p>Keeping the cell rigid and strong</p> Signup and view all the answers

    Which organelle is known as the powerhouse of the cell?

    <p>Mitochondria</p> Signup and view all the answers

    What is the main function of chlorophyll in plants?

    <p>Performs photosynthesis</p> Signup and view all the answers

    What does a vacuole in a plant cell primarily do?

    <p>Stores cell sap and helps with photosynthesis</p> Signup and view all the answers

    Which type of cells contain a nucleus bound by a double membrane?

    <p>Eukaryotic cells</p> Signup and view all the answers

    What is the main function of the cytoplasm in a cell?

    <p>Provides an aqueous medium for chemical reactions</p> Signup and view all the answers

    What is the primary role of the ribosomes in a cell?

    <p>Performs protein synthesis</p> Signup and view all the answers

    What differentiates prokaryotic cells from eukaryotic cells?

    <p>Prokaryotic cells have a simpler structure than eukaryotic cells.</p> Signup and view all the answers

    Which part of the plant cell contains chlorophyll and facilitates photosynthesis?

    <p>Chloroplasts</p> Signup and view all the answers

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