| A | B |
| Cocci | bacteria that are round or spherical in shape |
| Antisepsis | a process the prevents or inhibits the growth of pathogenic organisms |
| Bacilli | bacteria that are rod-shaped |
| Opportunistic | an infection that occurs when the body defenses are weak |
| Contaminated | any object that may contain pathogens |
| Nosocomial | an infection present in a health care facility & transmitted by health care workers to the patient |
| Anaerobic | any organism that lives & reproduces in the absence of oxygen |
| Fungi | simple plantlike organism such as yeasts & molds |
| Sterilization | a process that destroys all microorganisms including spores & viruses |
| Aerobic | any organism that requires oxygen in order to live & reproduce |
| Spirilla | bacteria that are spiral or corkscrew in shape |
| Protozoa | one-celled animal-like organisms found in decayed materials & contaminated water |
| Endogenous | an infection or disease that originates within the body |
| Pathogen | any organism that causes infection & disease |
| Viruses | smallest microorganisms, visible only by using an electron microscope |