light and electron microscopes

Cards (17)

  • What are the two types of microscopes discussed in the video?
    Light microscopes and electron microscopes
  • Why are light microscopes commonly thought of as conventional microscopes?
    They are used in classrooms and are familiar
  • What is one advantage of light microscopes?
    They are small, easy to use, and cheap
  • What is the resolution limit of light microscopes?
    0.2 micrometers
  • What does a resolution of 0.2 micrometers mean for light microscopes?
    Details less than 0.2 micrometers appear blurry
  • What can light microscopes be used to see?
    Individual cells like onion cells
  • What are the characteristics of electron microscopes?
    They are large, expensive, and hard to use
  • What is the benefit of using electrons in electron microscopes?
    Electrons have a wavelength of 0.1 nanometers
  • What is the maximum resolution of electron microscopes?
    0.1 nanometers
  • How does the resolution of electron microscopes compare to light microscopes?
    Electron microscopes have 2000 times better resolution
  • Why is a smaller resolution value better?
    It allows seeing tinier details clearly
  • What can electron microscopes be used to study?
    Sub-cellular structures like mitochondria
  • What is a key difference in the images produced by light and electron microscopes?
    Electron microscopes provide higher magnifications without blurriness
  • What are the pros and cons of light and electron microscopes?
    Light Microscopes:
    • Pros: Small, easy to use, cheap
    • Cons: Limited resolution (0.2 micrometers)

    Electron Microscopes:
    • Pros: High resolution (0.1 nanometers)
    • Cons: Large, expensive, hard to use
  • What type of cell structure can be seen with an electron microscope?
    Mitochondria
  • What type of cell was mentioned in the video as being observed with an electron microscope?
    Pancreatic cell
  • What should you remember when comparing light and electron microscopes?
    The pros and cons of each type