A2.2 Cell Structure

Question 1

Microscopy Skills: How to calculate magnification?

Answer 1

M(agnification) = I(mage size) / A(ctual size)

Question 2

commonly used microscope meter equivalents:
1 cm (centimeter)
1 mm (millimeter)
1 um (micrometer)
1 nm (nanometer)

Answer 2

0.1 m
0.001 m
0.000001 m (10^-6)
0.0000000001 m (10^-8)

Question 3

light vs electron microscope (LM vs EM)

Answer 3

light: inexpensive, easy specimen prep, <magnification, living or dead specimen

electron: expensive, complex specimen prep, >magnification, dead specimens

Question 4

cryogenic electron microscopy

Answer 4

computer enhancement, 3D image