Details Title: 19 Bacteria Description: bacteria and virus Total Flash Cards: 27 Created: 07/15/2009 18:19:56		New Users: To study from this flashcard set, or to create your own your own study flash cards, REGISTER HERE. Existing Users: CLICK HERE. Additional Biology Flashcards
Cards in this set: Term prokaryotes Definition unicellular organisms that lack a nucleus Term bacilli Definition rod shaped prokaryotes Term cocci Definition spherical prokaryotes Term spirilla Definition spiral prokaryotes Term chemoheterotrophs Definition prokaryotes that use food for energy and carbon Term photoheterotrophs Definition prokaryotes that use sunlight and food for energy and carbon Term photoautotrophs Definition prokaryotes that use light for energy and carbon Term chemoautotrophs Definition use energy from chemical reactions for energy and carbon Term obligate aerobes Definition organisms that require a constant supply of oxygen in order to live .. TB bacteria Term obligate anaerobe Definition bacteria that must live without oxygen Term facultative anaerobes Definition bacteria that does not care if it has oxygen or not like e coli Term binary fission Definition asexual reproduction where a bacterium replicates itself and produces two identical cells Term conjugation Definition the process where bacteria exchange information through a hollow bridge Term endospore Definition a spore that is formed when bacterium produces walls when conditions are harsh Term nitrogen fixation Definition bacterias process of converting nitrogen gas into a form plants can use Term virus Definition nucleic acid and proteins, poison in latin, debate if alive or not alive Term capsid Definition a virus's protein coat Term bacteriophage Definition a virus that can infect bacteria Term lytic infection Definition when a virus lyses the host cell immediatly which causes it to burst Term lysogenic infection Definition a virus changes a host cells DNA and then causes it to burst Term prophage Definition viral DNA that is embedded into the host's DNA Term retrovirus Definition a virus that starts with RNA and then turns itself into DNA inside hte host cell Term pathogens Definition the disease causing agents in a virus Term vaccine Definition to produce immunity for viruses, a preparation of weakened pathogens Term antibiotics Definition compounds that block the growht of bacteria Term viroids Definition single stranded RNA molecules that have no capsids Term prions Definition particles that are only capsids - contain no DNA or RNA