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Light Microscopes
Use visible light, have up to 1,000x zoom and are affordable
Electron Microscopes
Use a beam of electrons, have up to 2,000,000x zoom and are expensive
What part of the microscope do you use to carry the microscope?
The arm and with the other hand the base if needed
Only use course focus for?
4x, not 10x or higher because you could risk smashing the objective lens
The conversion between mm and pm is?
1mm = 1000pm
1pm = 0.001mm
Describe the relationship between magnification and FOV
Magnification is when you zoom in closer to the specimen that details appear larger and FOV shrinks you're seeing a small area of the specimen
The usefulness of microscopes in advancing our knowledge is?
They help us understand Cell Function
- Advance imaging allows scientists to track molecules inside cells in real time
- Help researches study proses like cell division and protein synthesis
What are the three parts of the cell theory?
1. All living organisms are composed of one or more cells
2. The cell is the basic unit of life
3. All cells arise from pre existing cells
Robert Hooke (1665)
Studied cork and named the structures he saw "cells".
Matthis Schleiden (1838)
concluded that all plants are made of cells
Theodore Schawnn (1839)
Concluded that all living this are made of cells
Rudolf Virchow (1855)
added the third part of the theory "All cells arise from pre existing cells"