Neurones and Synapses

Question 1

What is a TEM

Answer 1

Transmission electron microscope

Question 2

What is a SEM?

Answer 2

Scanning electron microscope

Question 3

What are the three types of microscopes?

Answer 3

-Transmission electron microscope.
-Scanning electron microscope.
-light microscope

Question 4

what are key features of a TEM?

Answer 4

-higher resolution
-produces 2D black and white image.
-uses high energy electrons.
-requires thin samples
-operated in a high vacuum environment

Question 5

what are key features of a SEM?

Answer 5

-high magnification (less than TEM)
-scans surface of specimen with a focused beam of electrons
-high resolution 3D image
-operates in a vacuum
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Question 6

what are key features of a light microscope?

Answer 6

-uses a visible light source
-can view specimens in a natural or stained colour.
-simple sample preparation.
-living cells can be observed