, Introduction
Bacteria are unicellular microorganisms
Vary in shape ranging from 0.2-0.5 µm
Smallest bacteria (mycoplasma) is the size of the largest
viruses (pox)
Irrespective of the shape bacteria have common structures
e.g cell wall, cell membrane, cytoplasm, ribosomes and the
chromosome.
Other structures such as plasmid, inclusion bodies, capsule,
fimbriae and flagella are possessed only by some bacteria
, Cell structures
External Internal
• Capsule • Ribosomes
• Cell wall • Mesosome
• Cell membrane • Plasmids
• Bacteria Appendages • Nucleoid
– Pili/ Fimbriae • Granules
– Flagella • Spores
, BACTERIAL ANATOMY