Microbiology
Microbes benefits humans
*Produce varous food products ( cheese , yogourt ,
wine)
*Used to produce Anti-biotics ( Penicillin )
*Bacteria are primary decomposers- recyclenutrients
back into environment (sewage treatment plants )
*Synthesize chemicals that our body need as (
Vitamin B for metabolism & Vitamin K for blood
clotting )
Classification
Great Britain & India used 5 kingdoms ( Traditional
whittaker classification )
Woese-Fox classification
United states used 6 kingdom
Fungi
Protista
Plantae
Archaea / Archaeabacteria
Animalia
Bacteria / Eubacteria
Fungi
Protista
Plantaea
Prokaryota / Monera
Animalia
Eubacteria = true bacteria has peptidoglycan cell wall
Archaea = odd bacteria wz no peptidoglycan cell wall
Eukarya ( has nucleus & organelles )
Classification of microoganisms
Bacteria
Fungi
Protozoa
they are uni-cellular eukaryotic organisms larger than
bacteria
Mastigophora motile by flagella
Ciliphora motile by cilia
Amoeba motile by pseudopodia
Sporozoa ( intra cellular infection )
are uni-cellular prokaryotic microorganisms
True-bacteria ( cocci & Bacilli )
Spirochetes ( flxuous spiral bacteria)
Filamentous bacteria (anti-biotic producer)
Mycoplasma ( the smallest bacteria that lack of rigid cell
wall )
Rickettsiae & Chlamydiae ( obligate intra-cellular
parasite)
with un usual characteristics (photosynthestic Bacteria )
that can synthesize requires nutrienta from in-organic
compounds
Green & purple sulfur bacteria
Gliding , Fruiting bacteria
Cyano bacteria ( blue-green algae)
gram ngative & contain photosynthetic chlorophyll
pigments & gas
*contain photosynthetic pigment bacteriocholorophyll
but don't give off oxygen
*Gram negative & glide over moist surface
they are saprophytic or parasitic eukaryotic organisms
possessing rigid cell wall ( chitin )
True yeast are ovoid or spherical that reproduce
asexually bybudding or sexually by spores
Dimorphic fungi produce avegetative mycellium in
artificial medium but yeast like in infected lesions
Mold is branching filaments usually 2 to 10 Micro m in
width
Yeas-like fungi
Viruses
consist of DNA or RNA enclosed in simple protien shell
( caspid)
consist of one kind of nucleic acid
metbolically inert
very small in size (20-300) nano
obligate intra-cellular parasite
only seen by electron microscope
depend on parasitized cell for survival & multiplication
ilness caused by them ( cold -influenza - hepatitis -
warta )
Algae
Multi-cellular Parasites
Eukaryotes uni-cellular or multi-cellular
Cellulose cell wall & photosynthetic , have simple
reproductive structures
Categorized on basis of pigmentation , storage
products & composition of cell wall
Organisms that live on or in another organism & use it
for nourishment
Eukaryotes,multi-cellular animals
Parasitic worm
Parasitic insects
