Friday, November 25, 2011

Biodiversity:kindom monera


Kindom monera can be classified into two classes
  • eubacteria(true bacteria)
  • archaebacteria(live in extreme condition)
eubacteria also can be classified into 2
  • eubacteria
  • cynobacteria

Eubacteria

-cell wall composed of peptidoglycan
-the structure of membrane lipid is ester and lipid
-the ribosome 70s is present
-it is sensitive to anti-biotic

Cynobacteria

-cell wall composed of poilysaccharide and protein
-the structure of membrane lipid is ether and lipid
-the ribosome 70s is absent
-not sensetif to anti-biotic


Archaebacteria (live in extrem condition)

-blue green algae
-exist in : single,filamentous or colonial
-live in ponds,lake, and most watery place
-some of it is photothrophs
-it is gram negative


Unique characteristic


-all are prokaryotic
-circular DNA
-have plasmid
-reproduce by prokaryotic fission
-chemoheterotrophic
(a) parasite: live in host,absorb other's nutrients
(b) saprobes: get nutrient from organic product,waste.

Importance

1.recycling chemical element
-nitrogen fixing

2.symbiotic relationship
-enterobacteria: E-coli in human intestine

3.pathogenic
-plant pathogenic bacteria
-agent of disease
eg; plasmodium cause malaria

4.In research and technology
-make soap powder,tanning leather
-medical research: easy to culture,make anti-biotic
eg: penicillium form penillin

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