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What is the cell theory?
All living things are made up of cells and come from pre existing cells the cell is the structural and functional version of life.
What are the 3 types of lenses in light microscopes?
Ocular: enlarges primary images formed by objective lens.
Objective: closes to specimens and forms primary image.
Condenser: focuses light rays through specimen.
What is shown by light microscope?
Shows cell and its interior and can observe living cell features highlighted by staining.
What is magnification and light used in light microscopes?
Uses light 400-750nm
X1000 magnification
What are light microscope not good for?
Not good for non photosynthetic organisms, unstained cells, cells suspension or tissue section.
From the incoming electron beam to the viewing screen/photographic film what are the lenses in a electron microscope?
Condenser lens
Specimen
Objective lens
Intermediate lens
Projector lens
How does a electron microscope work?
Uses electron beam instead of light and focused using magnets.
What is the resolution and magnifcation of electron microscope?
0.5nm Res and x500000 magnification
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