1. Size, Shape and Arrangement
Prokaryotes:
the smallest of all organisms
range from 0.5 – 2.0 µm in diameter and from 1.0 – 60 µm in length

2. THE MOST COMMON BACTERIAL SHAPES

3. Arrangements of Bacteria
Cocci in pairs (diplococci): Neisseria sp.
Cocci in chains (streptococci): Streptococcus sp.
Rods in chains: Lactobacillus sp.
Cocci in clusters: Staphylococcus sp.

5. Neisseria (22,578X)

6. Streptococcus (9605X)

8. Merisopedia (100X)

10. Sarcinia lutea (16,000X)

11. Predict what would happen if division happened along any plane of the cell, randomly?

13. Staphylococcus (5,400X)

14. Predict what would happen if division happened in one plane of bacilli cells?

15. Bacillus megaterum (10,000X)