Cell Structure and Function
15 Questions
0 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 science that studies the microscopic appearance of cells?

  • Biocytics
  • Cytology (correct)
  • Microtology
  • Cellology
  • Who proposed the Cell Theory in 1839?

  • Robert Hooke and Anton van Leeuwenhoek
  • Gregor Mendel and Charles Darwin
  • Louis Pasteur and Robert Koch
  • Matthais Schleiden and Theodor Schwann (correct)
  • What type of organism consists of only a single cell?

  • Microscopic organism
  • Multicellular organism
  • Macroscopic organism
  • Unicellular organism (correct)
  • What is the smallest working unit of all living things according to the Cell Theory?

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

    What are the three functions that all organisms, whether multicellular or unicellular, must accomplish?

    <p>Uptake and processing of nutrients, excretion of wastes, response to environmental stimuli</p> Signup and view all the answers

    Which type of microscope is used to view thin specimens through which electrons can pass generating a projection image?

    <p>Transmission electron microscope (TEM)</p> Signup and view all the answers

    What is the main function of a scanning electron microscope?

    <p>To depend on the emission of secondary electrons from the surface of a specimen</p> Signup and view all the answers

    What is the primary purpose of a light microscope?

    <p>To pass visible light through the specimen and glass lenses</p> Signup and view all the answers

    What is the technique used in electron microscopy to investigate the detailed structure of tissues, cells, organelles, and macromolecular complexes?

    <p>Transmission electron microscopy (TEM)</p> Signup and view all the answers

    Which type of microscope is used to obtain high resolution images of biological and non-biological specimens?

    <p>Both TEM and SEM</p> Signup and view all the answers

    Which type of microscope is used to pass visible light through the specimen and glass lenses?

    <p>Light microscope (LM)</p> Signup and view all the answers

    What is the main difference between transmission electron microscope (TEM) and scanning electron microscope (SEM)?

    <p>TEM generates projection images while SEM depends on the emission of secondary electrons from the specimen's surface</p> Signup and view all the answers

    What is the function of glass lenses in a light microscope (LM)?

    <p>To refract light and form an image</p> Signup and view all the answers

    Which type of microscope is suitable for viewing tissue sections and molecules?

    <p>Transmission electron microscope (TEM)</p> Signup and view all the answers

    In what way does the transmission electron microscope (TEM) differ from the light microscope (LM)?

    <p>TEM is used to view thin specimens generating a projection image while LM depends on the emission of secondary electrons from the specimen's surface</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Browser