B1.1.4 - Electron Microscopy

Question 1

What is the smallest size you can see with an electron microscope?

Answer 1

0.1 nano meters

Question 2

What is the resolution of an electron microscope defined as?

Answer 2

The smallest distance between 2 points that can be seen as 2 separate entities.

Question 3

What do electron microscopes use to produce an image?

Answer 3

Electrons

Question 4

What are the 2 types of electron microscopes?

Answer 4

Transmission Electron Microscopes

Scanning Electron Microscopes

Question 5

What does TEM stand for?

Answer 5

Transmission Electron Microscopes

Question 6

What does SEM stand for?

Answer 6

Scanning Electron Microscopes

Question 7

What are the advantages of SEM Microscopes?

Answer 7

They can produce a 3D image

Question 8

What is the advantages of electron microscopes?

Answer 8

They can see in much greater detail

Question 9

What are the disadvantages of electron microscopes?

Answer 9

They are too hard to move 
They cost too much
They are harder to operate
The specimen has to be dead
There’s only black and white, although false colour can be added

Question 10

What have Electron Microscopes allowed us to do?

Answer 10

View sub cellular structures in detail