Electron microscopes

Question 1

radiation used =
resolution =
magnification =

Answer 1

Electrons (not light)
Up to 0.1-0.2 nm
Up to 2 x 10^6 ( 2 million times )

Question 2

sample =
image =

Answer 2

must be dead and fixed due to vacuum
black and white sometimes coloured using computer

Question 3

advantages of electron microscopes

Answer 3

• much higher resolution than LM, can distinguish objects only nano metres apart
• ## much higher magnification - useful for studying internal structures of organelles