Methods of Studying Cells

Question 1

What are the 3 main types of microscope used to observe cells?

Answer 1

• Light microscope
• Scanning electron microscope
• Transmission electron microscope

Question 2

What is the medium used in each of the types of microscopes?

Answer 2

A light beam is used for the light microscope. For both the scanning electron and transmission electron microscopes, an electron beam is used.

Question 3

What is the maximum magnification of a light microscope?

Answer 3

x1,500

Question 4

What is the maximum magnification of a scanning electron microscope?

Answer 4

x200,000

Question 5

What is the maximum magnification of a transmission electron microscope?

Answer 5

x2,000,000

Question 6

What is the maximum resolution of a light microscope?

Answer 6

200nm

Question 7

What is the maximum resolution of a scanning electron microscope?

Answer 7

20nm

Question 8

What is the maximum resolution of a transmission electron microscope?

Answer 8

0.1nm

Question 9

What is magnification?

Answer 9

How much bigger the image is compared to the original object viewed with the naked eye.

Question 10

What is the magnification calculation?

Answer 10

Magnification = Size of image ‘ Size of object

Question 11

What is resolution?

Answer 11

How well a microscope distinguishes between two points that are close together.