B 2.1.1

2.1.1 a What are advantages of a light microscope?

Cheap

Small in size

Produce coloured images

Allows observation of living specimens

2.1.1 a What are disadvantages of an electron microscope?

Expensive

Large in size

Produces black and white images

Specimens viewed are in a vacuum, therefore it is not alive

2.1.1 a What do scanning electron microscope show?

A 3D, black and white image of the surface of the specimen

2.1.1 a What do transmission electron microscope show?

A 2D, black and white, high resolution (more organelles can be differentiated between) image of the specimen

2.1.1a What do light microscopes show?

A 2D, coloured, low resolution image of the specimen

2.1.1f What is the difference between the magnification and resolution of a light to S/T electron microscope?

S/T electron microscope has significantly higher resolution and magnification than light microscopes

2.1.1f Define resolution

The ability to differentiate between different organelles

2.1.1f Define magnification

How large the image size is compared to its actual size

What is the equation for Magnification?