For Fun - Be amazed by photos taken by scanning electron microscope!

The electron micrographs of the various organelles and structures you need to know for A level bio are taken using the transmission electron microscope (TEM).

There is another type known as scanning electron microscopy (SEM). Be super amazed by:

1. Bacteria on a human tongue
2. Human eyelashes
3. Household dust which includes long hairs such as cat fur, twisted synthetic
   and woolen fibers, serrated insect scales, a pollen grain, plant and insect remains
4. Cut hairs and shaving foam between two razor blades
5. Human sperm
6. Human head louse on a hair
7. Head of a mosquito
8. The weave of a nylon stocking
9. A silicon microchip
10.The surface of a strawberry
11. Velcro
12. An ant holding a microchip

http://www.classhelp.info/Biology/AUnit1Intro.htm
(scroll down to view the great photos!)