ANTIBIOTIC SUSCEPTIBILITY TESTING. Bacteria demonstrate two kinds of resistance to antibiotics, namely intrinsic resistance and acquired resistance. Intrinsic resistance means that the species was resistant to an antibiotic even before its introduction.
Radioactive contamination and radiation exposure could occur if radioactive materials are released into the environment as the result of an accident, an event in nature, or an act of terrorism. Such a release could expose people and contaminate their surroundings and personal property.
Four things can happen when radiation enters a cell: 1. The radiation may pass through without any damage occurring; 2. The radiation may damage the cell, but the cell repairs the damage; 3. The radiation may damage the cellâ¦the damage is not repairedâ¦and the cell. replicates itself in the damaged form; 4. The cell dies.