MCAT Chapter 1: The Cell, Cell Theory, and Microscopes
19 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the main topic of the first chapter of the MCAT?

  • Genetics of prokaryotic cells
  • Cell structure
  • Cell theory and microscopes (correct)
  • Virus classification
  • Who first saw cell walls under a microscope in around 1665?

  • Antony van Leeuwenhoek
  • Robert Hooke (correct)
  • René Descartes
  • Louis Pasteur
  • What is the main purpose of using microscopes to study cells?

  • To enlarge cells so they can be seen by the naked eye
  • To observe very small details in cells (correct)
  • To identify viruses in cells
  • To kill cells for study
  • Which scientist is credited with visualizing living cells under a microscope?

    <p>Antony van Leeuwenhoek</p> Signup and view all the answers

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

    <p>To magnify the specimen image</p> Signup and view all the answers

    Which parameter in microscopy is responsible for the clarity of an image?

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

    What is the maximum magnification light microscopes can achieve effectively?

    <p>~1000 times</p> Signup and view all the answers

    Why is resolution an important parameter in microscopy?

    <p>To measure the clarity of an image</p> Signup and view all the answers

    What is the main purpose of magnification in microscopy?

    <p>To enlarge the image of the specimen</p> Signup and view all the answers

    Which type of electron microscope is best suited for detailed studies of the topography of a specimen?

    <p>Scanning electron microscope (SEM)</p> Signup and view all the answers

    What is the theoretical resolution that modern electron microscopes can achieve?

    <p>0.002 micrometers</p> Signup and view all the answers

    What is the second basic tenet of cell theory?

    <p>The cell is the basic unit of life</p> Signup and view all the answers

    What does the fourth tenet of cell theory state regarding genetic information?

    <p>Cells carry genetic information in the form of DNA</p> Signup and view all the answers

    What distinguishes eukaryotic cells from prokaryotic cells?

    <p>Eukaryotic cells have internal membranes that compartmentalize their functions</p> Signup and view all the answers

    What is the main function of a transmission electron microscope (TEM)?

    <p>Studying internal structures of cells</p> Signup and view all the answers

    What was a significant improvement brought by electron microscopes over light microscopes?

    <p>Higher resolving power</p> Signup and view all the answers

    'Cells arise from pre-existing cells' is a basic tenet of cell theory. What does this statement imply?

    <p>'Every cell comes from another existing cell'</p> Signup and view all the answers

    'All living things are composed of cells' is a fundamental tenet of cell theory. What does this statement suggest?

    <p>'The basic structural unit of all living things is the cell'</p> Signup and view all the answers

    What separates eukaryotic cells from prokaryotic cells in terms of organization?

    <p>Eukaryotic cells lack internal membranes.</p> Signup and view all the answers

    More Like This

    MCAT Cell Biology Guide
    16 questions
    Cell Theory (Bio MCAT) Flashcards
    20 questions

    Cell Theory (Bio MCAT) Flashcards

    ManeuverableForgetMeNot2590 avatar
    ManeuverableForgetMeNot2590
    Use Quizgecko on...
    Browser
    Browser