GCSE Biology – Microscopes

Last updated: 19/04/2020

Edexcel GCSE Science – Biology higher Key concepts in biology GCSE Biology – Microscopes

Learning Objectives

-I can describe how microscopy techniques have changed over time

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Question 1 of 25

1. Question
When were electron microscopes first made?
- 20th century
- 19th century
- 16th century
- 19th century
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Question 2 of 25

2. Question
What is magnification?
- How much bigger the image is than the object
- How much bigger the object is than the image
- A type of microscope
- The smallest objects a microscope can show
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Question 3 of 25

3. Question
What is resolving power?
- The smallest objects a microscope can show
- How much a microscope can "zoom in"
- How expensive a microscope is
- A type of microscope
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Question 4 of 25

4. Question
What is the correct formula for magnification?
- Magnification = size of image / size of real object
- Magnification = size of image x strength of microscope
- Magnification = size of image x size of real object
- Magnification = size of real object / size of image
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Question 5 of 25

5. Question
What limits the quality of a microscope image?
- Resolution
- Magnification = size of image x strength of microscope
- How brightly coloured the sample is
- How many sub-cellular structures the sample has
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Question 6 of 25

6. Question
How do light microscopes work?
- They use a series of lenses to produce an image
- They use electron beams to produce an image
- They use electron beams and lenses to produce an image
- They do not use electron beams or lenses
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Question 7 of 25

7. Question
What is the resolving power of a light microscope?
- 200 nm
- 200 mm
- 20 mm
- 2 cm
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Question 8 of 25

8. Question
What is the max magnification of a light microscope?
- 2,000x
- 20x
- 4,000x
- 150x
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Question 9 of 25

9. Question
How do electron microscopes work?
- They use electron beams and electromagnets
- They use electron beams and lenses
- They use light rays and electromagnets
- They use light rays and lenses
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Question 10 of 25

10. Question
An electron microscope has a
- Higher magnification than an electon microscope
- Lower magnification than an electon microscope
- Lower resolving power than an electron microscope
- Similar magnification to a light microscope
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Question 11 of 25

11. Question
What is the resolving power of an electron microscope?
- 0.2 nm
- 2 nm
- 0.02 nm
- 2 mm
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Question 12 of 25

12. Question
What is the max magnification of an electron microscope?
- 2,000,000x
- 2,000x
- 4,500x
- 1,000,000x
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Question 13 of 25

13. Question
What can biologists see with electron microscopes that they couldn’t before?
- Sub-cellular structures
- Cells getting bigger
- Plant cells
- Animal cells
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Question 14 of 25

14. Question
What is an example of a sub-cellular structure?
- Mitochondria
- Lipid
- Glucose
- Protein
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Question 15 of 25

15. Question
Which type of microscope is newer?
- Electron microscope
- Light microscope
- There is no definite answer
- Both invented together
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Question 16 of 25

16. Question
Which type of microscope is more expensive?
- Electron microscope
- Light microscope
- Both are the same price
- Both are extremely expensive
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Question 17 of 25

17. Question
Which type of microscope is generally most appropriate for our school experiments?
- Light microscope
- Both types
- Electron microscope
- We don’t use microscopes
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Question 18 of 25

18. Question
State one benefit of a light microscope.
- Cheap to buy and operate
- Very high resolving power
- Very high magnification
- Expensive
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Question 19 of 25

19. Question
State one drawback of a light microscope.
- Low resolving power and magnification
- Colour image
- Works without a vacuum
- Can use living samples
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Question 20 of 25

20. Question
State one benefit of an electron microscope.
- High resolving power and magnification
- Cheap to buy and use
- Colour image
- Needs a vacuum to operate
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Question 21 of 25

21. Question
State one drawback of an electron microscope.
- B+W image, sample must be dead
- Cheap to buy and use
- Low resolving power
- Low magnification
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Question 22 of 25

22. Question
How should we express size of object calculations?
- In standard form
- With all the significant figures
- With only 1 significant figure
- Rounding to the nearest order of magnitude
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Question 23 of 25

23. Question
When were cells first observed?
- 17th century
- 18th century
- 16th century
- 19th century
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Question 24 of 25

24. Question
How big are animal cells?
- 0.01-0.05 mm
- 0.01-0.05 nm
- 0.01-0.05 cm
- 0.01-0.05 m
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Question 25 of 25

25. Question
How big are plant cells?
- 0.01-0.05 mm
- 0.01-0.10 cm
- 0.01-0.10 m
- 0.01-0.10 nm
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