Module 3: Microscopy

Question 1

Microscopy

Answer 1

Using light or electrons to magnify objects

Question 2

Micrometer

Answer 2

um - one-millionth of a meter - 10-6

Question 3

Nanometer

Answer 3

nm - one-billionth of a meter - 10-9
Smaller than a Micrometer

Question 4

What are the three principles of microscopy? Explain each

Answer 4

1. Magnification: Increase in size of the object
2. resolution: Ability to distinguish two points that are close together (resolving power)
3. Contrast: Difference of light absorbance between two objects or the object and its background