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Details Title: Biology Ch. 25 Description: Viruses Total Flash Cards: 30 Created: 01/14/2004 15:35:33	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term acyclovir Definition an antiviral drug Term antiviral drug Definition drugs that interfere with viral nucleic acid synthesis Term attenuated strain Definition refers to a preparation of a virus for a vaccine in which the virus is incapble of causing disease under normal circumstances Term azidothymine (AZT) Definition an ativiral drug that inhabbits the reverse transcriptase of retroviruses, such as HIV Term bacteriophage Definition a virus that infects bacteria Term capsid Definition the protien coat covering a virus Term envalope Definition a membrane-like struture outside the capsid that is made mostly of lipids and taken from a host cell membrane during replication Term glycoprotien Definition a molecule of protien with attached sugar chains Term helix Definition a viral shape resembling a coiled spring Term Human immunodeficiency virus (HIV) Definition the virus that causes AIDS Term isoahedron Definition a polyhedron or a capsid of a virus with 20 triangular faces Term inactivated vaccine Definition a vaccine that has been trated so that its componet microorganisms no longer have the ability to cause disease Term infectious disease Definition a disease caused by a pathogen that can be transmitted from one individual to another Term lysis Definition the distintegration of a cell by disruption of the plasma membrane Term lysogenic cycle Definition a virial replication process that does not kill the host cell immediately but stays inside of the host cell for a long period of time Term lytic cycle Definition the replication process of a virus that results in the distrution of the cell Term obligate intracular parcite Definition a paracite that require a host cell in order to reproduce Term prion Definition a glycoprotie particle implicated in diseases with long incubation periods Term prophge Definition an intracular bacteriophae hat is harmless to the host cell Term protease inhibitor Definition an antivarl drug the interfears with the synthesis of viral capsids during viral replication: in combintion with AZT has shown some promise in treating patients with HIV Term provirus Definition a viral DNA molecule produced by reverse transcriptase Term receptor site Definition the area of a cell membrane where antigen attchment akes place Term retrovirus Definition a virus such as HIV, that contains RNA and reverse transcriptase Term reverse transcriptase Definition an enzyme that make DNA from and RNA template Term T cell Definition a thymus-derived lympocyte that helps stimulate an immune response agianst an antiged and can attack certain antigans Term temperate Definition refering to a nonvirulent virus, rarely cousng disaese: moderate, not ubject to prolanged extreams of hot or cold Term viroid Definition a short, single strand of RNA that coses disease in plants Term virology Definition the study of viruses Term virulent Definition disease causing and highly infectios Term virus Definition a nonliving infectious particle composed of a nucleic acid and a prtien coat