Microscopy

Question 1

define magnification

Answer 1

Making things bigger

Question 2

Define resolving power

Answer 2

Can tell or see individual structures that are very close together

Question 3

Light microscope ?

Answer 3

How it works

Light shines through the specimen it is magnetised first by objective lens then by the eye piece lens before entering our eye

ADV
Cheap

Compact

Max magnification - 200 nm a part

Question 4

Transmission Electron microscope ?

Answer 4

How it works

Beam of electrons is passed through the specimen and detected on a screen which uses a computer to make an image

ADV

high magnification

high resolution

DIV

expensive

black and white

kills specimen

have to be trained

Question 5

Scanning electron microscope

Answer 5

How it works

Beam of electrons scan he sample picked by the detectors and gives us an image