The significance of technology and the cell theory Flashcards
1
Q
What is the cell theory?
A
- all living things are made from cells
- cells are the basic structural and functional unit of organisms
- all cells come from pre-existing organisms
2
Q
What is magnification on a microscope?
A
Ability to produce an image larger or smaller than its actual size
3
Q
What is resolution on a microscope?
A
the ability to distinguish details of a specimen or sample
4
Q
what is a light microscope?
A
- uses light (400-700nm wavelength light) to view a specimen
- image formed by the absorption of light
5
Q
what is an electron microscope?
A
uses electrons to view specimens
6
Q
what is an electron microscope?
A
microscope that uses electrons as the light source to show detailed images of the specimen
7
Q
why does an electron microscope produce higher resolution images?
A
electrons have shorter wavelengths so they produce higher resolution images
