1. Types Of Microscopes

2. Compound light microscope 2 or more lenses Light travels through objects Must be thin, semi transparent Up to 2000x magnification What we use in class (400x max)

3. Eyepiece Low Power Objective High Power Objective Mirror Stage clips Base Lamp Stage Diaphragm LIGHT SOURCE Coarse Adjustment Fine Adjustment Diaphragm Arm

4. Stereomicroscope Magnifies large items that light cannot pass through. Has an eyepiece lens for each eye Allows 3 dimensional view 10x to 60x magnification

5. Scanning Electron Microscope (SEM) Views 3 dimensional bodies Cannot be viewed in color Cannot view live specimens Electrons bounce off specimen, then picked up by computer Up to 100 000x magnification

6. Examples of SEM images

7. Ragweed Pollen

8. Ear Hairs

9. Ear Hairs Up Close

10. Red Blood Cells

11. White Blood Cell

12. Bacteria 1

13. Cat Flea

14. Cilia

15. Respiratory Cell Cilia

16. Salt Crystals

17. Sand Grains

18. Rainbow Trout Scales

19. Shark Scales

20. Yeast Budding

21. Tapeworm

22. Tapeworm Hooks

23. Transmission Electron Microscope (TEM) Similar to SEM Electrons pass through specimen Not 3 dimensional

24. Examples of TEM images

25. Bacteria Viruses

26. Bacteria 2

27. Bacteria 3

28. Plant Cell 1

29. Plant Cell 2