bacteria and viruses

18 terms by natebeast

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biogenesis

development of life from preexisting life

pathogen

a virus or organism that can cause disease

prokaryote

A unicellular organism that lacks a nucleus and membrane bound organelles

extremophile

archaea that live in extreme environments

photoautotroph

autotrophs that use light to create energy

capsid

outer protein coat of a virus

gram positive

bacteria that have simpler walls with a relatively large amount of peptidoglycan (purple)

gram negative

bacteria that have less peptidoglycan and are structurally more complex (pink)

binary fission

the division of a prokaryotic cell into two offspring cells

Nitrogen fixation

process by which certain bacteria convert nitrogen gas to ammonia

Conjugation

In bacteria, the direct transfer of DNA between two cells that are temporarily joined.

endospore

a thick-walled protective spore that forms inside a bacterial cell and resists harsh conditions

retrovirus

virus that contains RNA as its genetic information

bacteriophage

viruses that infect bacteria

lytic cycle

cycle of viral infection; results in replication of virus and cell destruction

bioremediation

uses bacteria to break down pollutants

Commensalism

symbiotic relationship where one partner benefits & the other is unaffected

reverse transcriptase

an enzyme that catalyzes the formation of DNA from an RNA template

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