A Bacteria: with undeveloped nuclear region.

Coccus (Clicular) Form


Bacillus Form
 

A Typical Animal's Cell: with well developed nucleus.

Endoplasmic Reticulum
 Mitochondria
Nucleus (dude)
Fat or Golgi Bodies

 
Above is an example of how the living world is dived into two distinguished groups. At the higher level, All organisms must be identified either as eukaryotes or prokaryotes.
  • Prokaryotes = (pro= Primitive) + ( Karyon =  nut)
  • Eukaryotes = (eu= tru ) + (Karyon = nut)
  • Mitochondria = Power house of the cell.
  • Golgibodies
  • Ribosomes =
  • DNA
  • Cell wall = Bacterial cell wall is different from a typical animal cell. In most of the casses, the cell membrane in bacteria is covered with a protective wall called cell-wall.  (please wait for the images I am working on, meanwhile ask you parent to visit www.arches.uga.edu/ ~kristenc/cellwall.html, a wonderful site describing the cell wall, a wow site)
  • Cell membrane = That regulates the transport of the bio-materials in and out. ( further readings http://cellbio.utmb.edu/cellbio/membrane.htm)
Characteristics Prokaryotes Eukaryotes
Nucleus Absent Present with nuclear membrane
DNA Open. Single closed loop, not associated with protein. Multiple chromosomes, tightly coiled and supported with proteins.
Ribosome ( site of protein synthesis) Smaller (50s/30s=70s) Larger (60s/40s=80s)
     
     
If you are really interested to how the living world is classified and what happened to the viruses, please visit this page.