Microscope Flashcards
Magnification Equation
Magnification = eyepiece lens magnification * objective lens magnification
Why stain cells?
Many cells are colourless, stain cells to make it easier to observe.
List of common stain
- Methylene blue
- Iodine solution
- Crystal violet
What’s the purpose of using methylene blue ?
To see nucleus of an animal cell
What’s the purpose of using iodine solution?
To see plant cell nuclei
What’s the purpose of using crystal violet ?
to see bacterial cell wall
List 2 types of electron microscope.
- Transmission electron microscope
- Scanning electron microscope
What images can Transmission electron microscope produce?
Produce most magnified images.
What images can Scanning electron microscope produce?
Produce 3D images
Comparison of Light Microscope vs Electron Microscope
Light Microscope
* Cheap
* Specimens Living/Dead
* Lower Resolution
Electron Microscope
* Expensive
* Dead Specimens
* Higher Resolution