| A | B |
|---|
| Microbe | an organism or entity that cannot be seen without a microscope |
| Virus | an infectious agent composed of protein and DNA or RNA |
| Viroid | an infectious agents composed exclusively of a single piece of circular single stranded RNA |
| Prion | a self replicating protein |
| Pathogenic | disease causing |
| Capsule | a sticky layer of polysaccharide or protein found outside the cell membrane |
| Flagellum | a long whip-like structure used to propel a cell or organism |
| Fimbriae | a string-like structures that allow bacteria to stick to their substrate or other individuals in a colony |
| Pilus | a tube-like structure by which bacteria exchange DNA |
| Escheria Coli | a bacterium found in colon |
| Helicobacter Pylorus | the bacterium that causes ulcers |
| Staphylococcus A | a bacterium found on skin |
| Capsid | protein shell that encloses the genetic material of a virus |
| Membranous envelopes | found outside the capsid in some viruses that helps them infect hosts |
| Host Range | refers to limited number of cell types a virus can infect |
| Animal viruses | Rabies & Polio & Mumps & Herpes & small pox & feline leukemia & Influenza. |
| Plant Viruses | Tobacco mosaic virus & Banana streak virus & Carrot thin leaf virus |
| Bacterial Viruses | Bacteriophages |
| The Lytic cycle | The replication of viruses resulting in the destruction of the host cell |
| Virulent virus | virus that replicate only by the lytic cycle |
| Temperate virus | virus that replicates using the lysogenic cycle |
| The lysogenic cycle | the replication of viruses that involves the incorporation of the viral DNA into the host?s genome and later triggered to enter the lytic cycle |
| Pathology | the study of disease |
| Pathogen | organism that causes a disease |
| Virology | the study of viruses |
| Antibiotics | chemicals that kill bacteria by interfering with cellular functions |
| Vaccine | a small portion of a pathogenic agent that is used to induce an immune response |
