Studying cells & microscopy

Cards (12)

What is cytology? 
The study of cell structure
What does a higher resolution mean? 
more detail seen on the image
What does a 0.2um resolution power mean? 
that if 2 objects are closer ogether than 0.2um they are seen as ONE OBJECT in the image
what is resolution? 
a measure of the microscopes ability to distinguish between 2 points which are close together on an objectg
what is the magnification equation?
image/actual
What is the resolution of a light microscope? 
0.2um
what is the resolution of an electron microscope? 
5 NANOMETRES
Give 3 advantages of light microscopes?
small. easy to use. relatively cheap
give disadvantages of light microscopes? 
rely on light (wave length)
resolution limited to 0.2 um - any details less than 0.2um will appear blurry so not good enough to study subcellular structure
who uses electron microscopes and where? 
used by scientists in labs
what is the maximum resolution of an electron microscope?
0.1 nm
how many times better are electron microscopes than light microscopes? 
2000 times better