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caspid

the protein coat by bacteria to attach to surfaces

pili

hair like structures used by bacteria to attach to surfaces

flagella

whip like tail used to move some bacteria

nucleoid region

area in prokaryotes where DNA is found

lysogenic cycle

viral cycle in which the virus does not kill the cell immediatly

lytic cycle

viral cycle in which the virus kills the cell.

pathogen

disease causing bacteria or virus

bacteriophage

viruses which attack or inffect bacteria

cocci

spherical shaped bacteria

bacilli

rod shaped bacteria

spirillum

the spirial shaped bacterial

conjugation

the exchange of DNA between two bacteria

obligate aerobes

organisms which require oxygen to live.

obligate anaerobes

organism which do not require oxygen to live.

facultative anaerobes

organism taht can live in the prescence of oxygen but don not require oxygen

chemoautotrophs

organisms which produce there own food by using any organic chemicals

photo autotrophs

organisms which produce there own food in the prescence of light

peptidoglycan

compound found in the cell wall of bacteria

binary fission

the process which split bacteria into two new cells

endospore

a tough covering over the cell wall of a bacterium whcih proctexts the bacteria during harsh conditions

propage

a piece of viral DNA which becomes part of the host cells DNA

retrovirus

a virus which contains RNA instead of DNA

vaccine

Preventive meausres against viruses

antibotics

man made antibodies to aid bacteria infection

viroid

a naked piece of DNA which infects plants

prion

a short protein which causes diseases in animals

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