Comparing Resolution: Electron vs. Light Microscopes

The video tutorial explains the differences between light and electron microscopes, focusing on their resolution capabilities. Light microscopes, commonly found in school labs, have a resolution of 200 nanometers, allowing them to view cells but not organelles. Electron microscopes, with a resolution of 0.1 nanometers, can view organelles like mitochondria. The resolution depends on the wavelength of the illumination source, with electron beams having a shorter wavelength than visible light. The tutorial also explains the concept of nanometers and their significance in measuring small distances.

Why are electron microscopes not commonly found in high school labs?

• They are too complex to use.

• They are too expensive.

• They are not needed for high school experiments.

• They are too large.

What is the definition of resolution in microscopy?

• The smallest distance between two points that can be distinguished.

• The clarity of the image produced.

• The size of the object being viewed.

• The ability to magnify objects.

What is the smallest distance that can be distinguished using a light microscope?

• 400 nanometers

• 0.05 nanometers

• 200 nanometers

• 0.1 nanometers

Which organelles can be viewed using an electron microscope but not a light microscope?

• Nucleus

• Mitochondria

• Cell wall

• Chloroplast

What determines the resolution of a microscope?

• The type of lens used

• The wavelength of the illumination source

• The size of the object being viewed

• The magnification power

What is the approximate shortest wavelength of visible light?

• 0.05 nanometers

• 0.1 nanometers

• 400 nanometers

• 200 nanometers

What is the best resolution of an electron microscope?

• 0.05 nanometers

• 400 nanometers

• 0.1 nanometers

• 200 nanometers

How small is one nanometer in meters?

• 1 x 10^-7 meters

• 1 x 10^-9 meters

• 1 x 10^-6 meters

• 1 x 10^-8 meters

What is the resolution of a light microscope in meters?

• 2 x 10^-9 meters

• 2 x 10^-7 meters

• 2 x 10^-8 meters

• 2 x 10^-10 meters

Why does an electron microscope have a higher resolution than a light microscope?

• It magnifies objects more.

• It uses a shorter wavelength illumination source.

• It uses a stronger lens.

• It has a more advanced design.