Microscopy

Question 1

Parameters

Answer 1

Magnification, contrast and resolution

Question 2

Light Microscope

Answer 2

Visible light passes through the specimen then through one (simple) or two (compound) glass lenses. Lenses refract light so image of specimen is magnified into eye

Question 3

Transmission Electron Microscope

Answer 3

Beam of electrons is passed THROUGH a thin section and the electrons that pass through fall on photographic film to reveal image of interior of specimen

Question 4

Scanning Electron Microscope

Answer 4

Electrons are reflected off a specimen covering with an electron dense material (gold) to produce 3-D image of SURFACE of a specimen

Question 5

Visible Light

Answer 5

Wavelength, focus with glass lenses, coloured image
Poor resolution=Lower magnification

Question 6

Electron

Answer 6

Particles, focus with electromagnets, B+W image
Good resolution=Higher magnification