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29 Cards in this Set

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  • Back
a protein to which carbohydrate molecules are attached
glycoprotein
an enzyme that catalyzes the formation of DNA from an RNA template
reverse transcritptase
a polyhedron that has 20 triangular faces
icosahedron
the study of viruses and viral infections
virology
a virus that contains single-stranded RNA and produces a reverse transcriptase, which converts RNA to DNA
retrovirus
human immunodeficiency virus, the virus that causes AIDS
HIV
a protein sheath that surrounds the nucleic acid core in a virus
capsid
a nonliving, infectious particle composed of a nucleic acid and a protein coat; it can invade and destroy a cell
virus
an infectious agent that consists of a small strand of RNA and that causes disease in plants
viroid
the shape of a virus that resembles a coiled spring
helix
an infectious particle that consists only of a protein and that does not contain DNA or RNA
prion
a membrane like layer that covers the capsids of some viruses
envelope
viral DNA that has attached to a host cell's chromosome and that is replicated with the chromosome's DNA
provirus
describes viral replication that results in the destruction of a host cell and the release of many new virus particles
lytic cycle
a vaccine that has been treated so that its component microorganisms no longer have the ability to cause disease
inactivated
describes a nonvirulent virus that rarely causes lysis in host cells; also moderate, not subject to prolonged extremes of hot or cold
temperate
virus that has been genetically altered so that it is incapable of causing disease under normal circumstances
antenuated virus
an antiviral drug used against herpes and chicken pox
acyclovir
the disintegration of a cell by disruption of the plasma membrane
lysis
anti viral drug that inhibits the reverse transcriptase of retroviruses; used in the treatment of HIV (AZT)
azidothymidine
a virus that infects bacteria
bacteriophage
the part of a cell that combines with outside molecules and that functions as an antibody
receptor site
the viral genome (DNA) of a bacteriophage that has entered a bacterial cell, has become attached to the bacterial chromosome, and is replicated with the host bacterium's DNA
receptor site
the viral genome (DNA) of a bacteriophage that has entered a bacterial cell, has become attached to the bacterial chromosome, and is replicated with the host bacterium's DNA
prophage
interferes with the synthesis of viral capsids during viral replication; used with AZT to slow progression of HIV
protease inhibitor
describes a microorganism or virus that causes disease and that is highly infectious
virulent
describes viral replication in which a viral genome is replicated as a provirus without destroying the host cell
lysogenic
a drug that destroys viruses or prevents their growth or replication
antiviral drug
viruses because they depend on host cells for replication are called this
obligate intracellular
parasite