Microscopy Quiz
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5 questions, one answer each
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1. A cell is 24 mm long in a micrograph at ×3000. What is its actual length?
- A. 8 µm
- B. 72 µm
- C. 0.8 µm
- D. 80 µm
2. Which is the main reason a TEM has a higher resolution than a light microscope?
- A. Electrons are larger than photons
- B. Electrons have a shorter wavelength than light
- C. The image is formed in colour
- D. The specimen is thicker
3. 100 divisions of an eyepiece graticule line up with 0.5 mm on a stage micrometer. What is the actual length of a cell 20 divisions long?
- A. 100 µm
- B. 10 µm
- C. 25 µm
- D. 500 µm
4. Which type of microscope can be used to view living cells?
- A. Transmission electron microscope
- B. Scanning electron microscope
- C. Both types of electron microscope
- D. Light microscope
5. A student draws a cell 12 cm long. The actual cell is 60 µm long. What is the magnification of the drawing?
- A. ×200
- B. ×2000
- C. ×720
- D. ×20 000