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| 6441583927 | Virus | an infection particle consisting of genes packaged in a protein coat | 0 | |
| 6441583928 | DNA/RNA in Virus | contains either double-stranded or single stranded RNA or DNA | 1 | |
| 6441583929 | what do viruses not have/can't do | lack machinery/structures found in cells cannot reproduce outside host cell cannot carry out metabolic activities on their own only intracellular parasite | 2 | |
| 6441583930 | parts of virus | capsid: shell genetic material: DNA/RNA some have envelope: surround capsid, comes from membrane of host cell | 3 | |
| 6441583931 | bacteriophages | viruses that infect bacteria almost all have DNA genomes | 4 | |
| 6441583932 | host range | virus can only infect limited number of host species "lock and key" -- between viral surface proteins and specific receptor molecules on outside of host cells | 5 | |
| 6441583933 | infection | begins when virus binds to host cell and viral genome enters the cell viral proteins take over host and reprogram cell to copy viral nucleic acids and proteins | 6 | |
| 6441583934 | what does cell provide for virus in infection | provides: nucleotides amino acids enzymes tRNA host cell provides DNA polymerase but RNA viruses use viral RNA polymerase | 7 | |
| 6441583935 | simple replication | copies nucleic acids and proteins components self-assemble hundreds/thousands of assembled viruses leave host cell (which could damage/destroy host cell) | 8 | |
| 6441583936 | cell death from virus | causes many symptoms associated with viral infections (cell breaks open from too many virus particles or cell is not able to make enough of its own proteins) | 9 | |
| 6441583937 | lytic cycle of virus | results in host cell death (lytic = lysis, lysiss--breaks open) cell) |  | 10 |
| 6441583942 | envelope on animal viruses | has viral glycoproteins and host plasma membrane that binds to specific receptor molecules | 11 | |
| 6441583944 | retroviruses | two identical ssRNA enter and used as template to form DNA using reverse transcriptase viral dsDNA enters and is integrated in host DNA (called provirus) provirus never leaves host DNA | 12 | |
| 6441583945 | reverse transcriptase | creates complement to ssDNA ssRNA->ssDNA->dsDNA | 13 | |
| 6441583948 | prion | infections proteins converts folded protein into misfolded protein and interferes with normal protein act can cause degenerative brain diseases (mad cow) acts slowly indestructible with no known cures | 14 |
