Microscopes Flashcards
1
Q
Two types of microscopes
A
Light/optical and electron
2
Q
What can be viewed through a light/optical microscope?- 2 marks
A
- living and dead specimen
- thin sections of animal/plant cells
3
Q
What cannot be viewed by an optical microscope?
A
Detailed info on organelles
4
Q
What must be done to specimen before it is placed under a microscope?
A
Stained
5
Q
What is an optical microscopes magnification?
A
x1500
6
Q
What microscope has a lower resolution?
A
Optical
7
Q
Why is the resolution lower in an optical microscope?
A
- electron beams of visible light have a longer wavelength 700nm - 400nm
8
Q
What is the electron beams wavelength for visible light?
A
700nm-400nm
