Physiological and Morphological Characteristics of 
Cyanobacteria 
1 . 
2 . 
Prokaryotic Cellular Structure. 
Photosynthesis: 
CO2 + Light , 
r-u "]L--?r > ch 2 + 02 
Chlorophyll 
3. Vertical Motility and Depth Regulation Via 
Internal Gas Vacuoles. 
4. Nitrogen Fixation: 
N2.> Biomass and Metabolism 
Table I 
100 
