3.2 Electron Microscopes

Question 1

What are the pros of Electron microscopes?

Answer 1

Higher Magnification
Higher resolution
Visible sub cellular structures

Question 2

What are the cons of electron microscopes?

Answer 2

Expensive
Only used on dead cells

Question 3

What are the pros of light microscopes?

Answer 3

Cheaper
Can be used on living cells
Less colour distortion

Question 4

What are the cons of light microscopes?

Answer 4

Low magnification
Lower definition
Cannot see sub cellular structure

Question 5

What are the 2 types of electron microscope?

Answer 5

SEM
TEM

Question 6

What are the cons of a TEM

Answer 6

Living specimens cannot be observed
It has a complex staining problem
Only in 2d

Question 7

What are the pros of a TEM

Answer 7

Higher resolution
Allows view of inside the cell

Question 8

What are the cons of an SEM

Answer 8

Bad resolution

Question 9

What are the pros of a SEM

Answer 9

Provides a 3d image

Question 10

How do electron microscopes work?

Answer 10

By firing electrons which bounce if the surface of structures

Question 11

How do electron microscopes work?

Answer 11

By firing electrons which bounce if the surface of structures