cells

Question 1

How does an optical microscope work?

Answer 1

Visible light passes through and is bent through the lens system enabling user to see the specimen

Question 2

What cells are visible through an optical miscrscope?

Answer 2

Alive cells
Transparent with special stains

Question 3

Uses of light microscope?

Answer 3

Max resolution is 0.2 micrometres
Nucleus and mitochondria can be seen
Maximum magnification is around x1500

Question 4

How does an electron microscope work?

Answer 4

Beams of electrons instead of light
Allowing higher resolution and resolving power- more detail can be seen

Question 5

uses of electron microscopes?

Answer 5

Maximum resolution of 0.0002
Maximum magnification is around 1500000

Question 6

SEM and its uses?

Answer 6

Scanning electron microscope and is when a beam of electrons move back and forth reflecting off the specimens surface
Images are 3D and specimens don’t have to be thin.

Question 7

TEM and its uses

Answer 7

Transmission electron microscope and uses electromagnets to produce an image
Thin specimens needed and can see the internal structures