1.5 Technological Advances of the Microscope

Question 1

What are the four types of microscopes?

Answer 1

Single Lens
Compound light
Transmission electron
Scanning electron

Question 2

What is the magnification of a single lens microscope?

Answer 2

10X

Question 3

What is the magnification of a Compund light microscope.

Answer 3

The first lens time the second lens. Example 10X first lens 10X second lens magnification 100. 4X first lens 10X second lens 40.

Question 4

What is the capability of a transmission electron microscope?

Answer 4

Two million times.

Question 5

What are the two major limitations in a transmission electron microscope.

Answer 5

1. Only thin slices of cells must be used.

2. Preparing the cells for viewing kills them this means only dead cells can be observed.

Question 6

What are the limitations of scanning electron microscope.

Answer 6

Only the outside of the specimen can be seen.

Question 7

Give one advantage of a Compund light microscope over a single lens microscope.

Answer 7

Magnification is greater on a compound light microscope.

Question 8

Give one advantage of a scanning electron microscope over a transmission electron microscope?

Answer 8

An advantage of a scanning electron is that the cells cant stay alive while viewing.

Question 9

Which microscope would you recommend for viewing the detailed structure of a cells nucleus.?

Answer 9

I would recommend the transmission microscope.

Question 10

What microscope would you recommend for viewing the outside of a single cell.

Answer 10

The scanning electron microscope.