OCR AS Biology - F211 - Microscopes and Magnification

A test on pretty much everything you need to know about magnification and microscopes for OCR AS Biology. 

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1. What is the primary advantage of the TEM?

  • It can have a magnification of x500,000
  • It produces 3D Images
  • It gives an image with colour
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Other questions in this quiz

2. Why does a light microscope become useless if you want to view anything with a magnification above x1500?

  • You can't conventionally stain a specimen which requires magnification of x1500
  • The resolution of it is too low
  • They require power to magnify any further

3. What resolution can be achieved by a light microscope?

  • 0.2nm
  • 200nm
  • 20nm
  • 2nm
  • 2000nm

4. What resolution can be achieved by a TEM and SEM?

  • 50nm
  • 0.01nm
  • 5nm
  • 0.1nm
  • 20nm

5. Why do electron microscopes have a higher resolution than light microscopes

  • The specimens are viewed within a vacuum, reducing distortion
  • The image seen is projected onto a screen, meaning the resolution can be far greater
  • A beam of electrons has a much shorter wavelength than a beam of light
  • The magnification of an electron microscope is far greater
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Comments

Jess

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this really helped thank you (:

Ebun Sodipo

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this is really helpful, i learnt and remembered at the same time!

Rebecca Kidd

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I really struggled with this topic so it was helpful to test what I knew, thank you!

sonia ike

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it really helped. ;)

Swallowtail

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A  well liked  quiz covering aspects of microscopy in the form of straightforward, easy to understand questions Use for exam preparation for any specification's cells and microscopy unit. 

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