Ch 3.1 : How Cells are Studied

Question 1

Light Microscope
- LPO
- LMI
- SMAF
- SAV

Answer 1

How it works :
- Light passes through object (cells)
- Lenses magnify the image
- Stage can be moved to adjust focus
- Stain is added to visualize

Question 2

Electron Microscope
- EPO
- RV&NC
- DUSO
- UHR

Answer 2

• Electrons passed through object
• Requires vacuum and non-living cells
• Detectors used to “see” objects
• Uses higher resolution

Question 3

Unified Cell Theory

Answer 3

1. All living things (bacteria, plants, animals etc) are composed of one or more cells
2. The cell is the basic unit of life
3. New cells arise from existing cells