microbio chapter 6 part 2

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General Morphological Symmetry of Capsids
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Terms in this set (23)
-look like a hollow cylinder
-they infect tobacco plants (tobacco mosaic virus)
-have rod-shaped capsomeres that bond together to form a series of hollow discs resembling a bracelet.
-During the formation of the nucleocapsid, these discs link with other discs to form a continuous helix into which the nucleic acid strand is coiled.
Penetrationenters a host cellUncoating 2-come out of coat so it can synthesize -enzymes in the vacuole dissolve the envelope and capsid, releasing the virus into the cytoplasmSynthesismake more virus particlesAssemblyviral DNA is put into protein coatRelease 3-leave the host cell by exocytosis -envelopes are formed ( remember that sometimes it can take with it part of the host cells cell membrane so it has an envelope around it)Prions 2-infectious protein particles -smaller than virusesViroidsNaked RNA (affects plants)Virulent phageKills the hostTemperate phageviruses that infect a bacteria and form a lysogenic or lytic relationshipLysogenicdoes not kill the host cell right awayLyticthe virus causes the cell'sInductionthe move to lytic from lysogenicTransductionincludes DNA from previous host.