Cell ultrastructure Flashcards
1
Q
Define the term “limit of resolution”
A
The minimum distance two objects can be distinguished at
2
Q
Why are electron microscopes capable of a finer resolution than light microscopes?
A
Limit of resolution is proportional to wavelength (resolution improves as wavelength decreases)
Visible light 0.4 um- 0.7um
Election 0.004nm
3
Q
What are the theoretical limits of resolution of a light microscope and an TEM?
A
Light 0.2um
TEM 0.002nm
4
Q
Describe the glycolax
A
Cell coat made up of oligosaccharides and polysaccharides side chains on the outside of the PM. Give the cell specificity.
5
Q
Describe plasma membrane
A
functions of the plasma membrane include
