| A | B |
|---|
| Electron microscope | Instrument used to observe a virus |
| Capsid | Protein cover of virus |
| DNA or RNA | Nucleic acid found in head of virus |
| Most living organisms | What viruses attack |
| Disease causing agent smaller than virus | Viroid |
| Bacteriophage | Virus that attacks bacteria |
| Sheath | Outer covering of tail |
| Tail Fibers | Act as micro syringes to inject viral DNA |
| Vaccines | Causes immunity to viral diseases |
| Vaccines | Tricks immune system into creating antibodies |
| Toxins | Poison created by viruses |
| Provirus | Viral DNA inserted into host chromosome |
| Viroid | infectious single strand of RNA with no capsid |
| Prion | Misshapen version of brain protein |
| Lysogenic cycle | Reproductive cycle in which the host cell is not destroyed |
| HIV | Virus that causes AIDS |
| Lysogenic cycle | Reproductive cycle that produces a provirus |
| Lytic Cycle | Reproductive cycle that breaks cell |
| Pathogen | Disease causing agent |
| Vaccines | Made from dead or weakened viruses |
| Head | Top part of virus containing DNA or RNA |
| Attachment | First stage of lytic infection |
| Injection | Stage of lytic infection where DNA is put into host cell |
| Synthesis | Stage of lytic infection where viral material in created |
| Assemblage | Stage of lytic infection where viruses are put together |
| Cell lysis | Final state of lytic infection |
| Envelope | membranelike layer that covers capsid of some viruses |
| Koch's Postulates | procedure for identifying a pathogen |
| Shingles | Caused by the same virus as chickenpox |
| Flu | Caused millions of deaths in single year |
| Methods of viral transmission | air, water, food, body fluid & contact |
| Methods of protecting against viruses | wash hands, cover your mouth when sneezing, don't share food/drinks |
