2.1.1 Cell Structure

Question 1

Definitions of magnification and resolution

Answer 1

Magnification- how many times larger the image is than the actual size
Resolution- ability to distinguish between two objects

Question 2

Equation for magnification

Answer 2

Magnification = image size/ actual size

Question 3

Describe two types of electrons microscopes

Answer 3

Transmission electron microscope (TEM) electrons pass through and around specimen giving some contrast, 2D image, magnification 500,00X
Scanning Electron microscope (SEM) electrons reflect off sample, 3D image, 100,000X

Question 4

Nucleus function

Answer 4

Contains genetic information