Cells and Cell technique

Question 1

What is magnifiication?

Answer 1

number of times bigger the image actually is

Question 2

What is resoloution?

Answer 2

minimum distance between two points to be seen seperate

Question 3

Features of optical microscopes

Answer 3

Use light
Eyepieces lens (x10)
Specimens one cell thick
Staining to make it visible

Question 4

Features of electron microscopes

Answer 4

Beam of electron
High resolution = greater detail
Stained using electron dense substances
Magnification can be as high as 500,000 X
Transmission electron microscopes make the beam pass through the specimen
Scamming electron microscopes reflect of the surface which produces a 3D images

Question 5

How do you calculate magnification?

Answer 5

magnification=image size/real length