Viruses Flashcards
what is the protein coat of a virus called?
capsid
what is the capsid made of?
repeated subunits of virally encoded protein
where do viruses need to be in order to replicate?
within a living cell
what is virus attachment?
protein spikes on the virus interact with an antigen on the surface of a human cell
how does a virus enter a human cell?
viral membrane fuses with the cell membrane or via endocytosis
what is uncoating of a virus?
the viral nucleic acid is released from the capsid
where does uncoating happen if a virus contains DNA?
the nucleus
where does uncoating happen if a virus contains RNA?
the cytoplasm
how are viruses released from host cells?
either by budding or lysis
what is budding?
when a virus leaves with a piece of the host membrane surrounding the capsid
what is a layer of host membrane around the capsid called?
the envelope