Podcast
Questions and Answers
What is a key advantage of using a stereo light microscope compared to other types of microscopes?
What is a key advantage of using a stereo light microscope compared to other types of microscopes?
It allows you to view specimens in 3D.
If you needed a microscope for a classroom setting, which type would likely provide the best balance of cost and ease of use?
If you needed a microscope for a classroom setting, which type would likely provide the best balance of cost and ease of use?
Compound light microscope.
Why is an electron microscope not suitable for observing living cells?
Why is an electron microscope not suitable for observing living cells?
It produces electron beams that shine through dead specimens.
What is the maximum magnification possible with a compound light microscope?
What is the maximum magnification possible with a compound light microscope?
What benefit does using two eyepieces provide in stereo light microscopes?
What benefit does using two eyepieces provide in stereo light microscopes?
A researcher needs to examine the fine details of the internal structure of a virus. Which type of microscope would be most appropriate?
A researcher needs to examine the fine details of the internal structure of a virus. Which type of microscope would be most appropriate?
What is a major limitation of using a compound light microscope when viewing thick samples?
What is a major limitation of using a compound light microscope when viewing thick samples?
What is one key disadvantage of stereo light microscopes regarding their ability to magnify specimens?
What is one key disadvantage of stereo light microscopes regarding their ability to magnify specimens?
Describe how the electron microscope creates an image of a specimen.
Describe how the electron microscope creates an image of a specimen.
A biologist wants to observe the external features of a fly. They need to be able to manipulate the fly during observation. Which microscope is most suitable?
A biologist wants to observe the external features of a fly. They need to be able to manipulate the fly during observation. Which microscope is most suitable?
The use of which type of microscope is limited to dead specimens only?
The use of which type of microscope is limited to dead specimens only?
Describe the image you would expect to see using a stereo light microscope.
Describe the image you would expect to see using a stereo light microscope.
Which microscope has the highest maximum magnification?
Which microscope has the highest maximum magnification?
What is the key method used by compound light microscopes to view a sample?
What is the key method used by compound light microscopes to view a sample?
What makes a compound light microscope ideal for viewing individual cells?
What makes a compound light microscope ideal for viewing individual cells?
Which type of microscope cannot focus well on large specimens?
Which type of microscope cannot focus well on large specimens?
Which type of microscope is the most expensive?
Which type of microscope is the most expensive?
Which type of microscope is the cheapest?
Which type of microscope is the cheapest?
Up to what magnification can a stereo light microscope achieve?
Up to what magnification can a stereo light microscope achieve?
Up to what magnification can an electron microscope achieve?
Up to what magnification can an electron microscope achieve?
Flashcards
Stereo Light Microscope
Stereo Light Microscope
Magnifies up to 300x. Can view outer details. Shows 3D pictures via two eyepieces. Can be used on living or dead organisms.
Compound Light Microscope
Compound Light Microscope
Magnifies up to 2000x. Light shines through thin specimens to see inside living or dead cells. It is the cheapest microscope.
Electron Microscope
Electron Microscope
Magnifies up to 2,000,000x. Produces electron beams to see outer and inner details of dead specimens. It is the most expensive microscope
Stereo light- ability to see?
Stereo light- ability to see?
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Compound light - Advantages
Compound light - Advantages
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Electron - Advantages
Electron - Advantages
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Stereo light - Disadvantages
Stereo light - Disadvantages
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Compound Light - Disadvantages
Compound Light - Disadvantages
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Electron - Disadvantages
Electron - Disadvantages
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Study Notes
- Biology revision: Microscopes
Microscope Types
Stereo Light Microscope
- Magnification goes up to 300x
- Outer details of a specimen can be viewed
- Shows 2 different pictures of a specimen through 2 different eyepieces, so the brain sees it as a 3D object
- Can be used on a living or dead organism
Compound Light Microscope
- Magnification goes up to 2000x
- The cheapest microscope type
- Light shines through specimen that are thin like cells, so you can see inside living or dead specimens
Electron Microscope
- Magnification goes up to 2,000,000x
- The most expensive microscope type
- Produces electron beams that shine through dead specimens
- The outer and inner details of a specimen can be seen
Advantages of Different Types of Microscopes
Stereo Light
- Able to see specimens in 3D
- Specimens can be alive or dead under this microscope
Compound Light
- Most affordable
- Simple and easy to use
Electron
- The outer and inner details of a specimen can be seen
- High magnification
Disadvantages of Different Types of Microscopes
Stereo Light
- Low magnification
- Its impossible to see inside of a specimen
Compound Light
- Cannot see through thick samples
- Cannot focus well on large specimens
Electron
- Expensive
- Cannot view alive specimens
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