Efflux -Pump
Antibiotic Altered
Digested

The resistance gene throws out the the medicine using a mechanism called "eflux-pump"
The resistance genes in bacteria will change the shape of the antibiotics, so that antibiotic won't be bind bacterial ribosome and bacteria will have no problem growing.
Some terminology:

Bacteria Project


Disease or Not: Introduction, Two Theories, Experiments on Germ theory, Experiments to Application
Identification: Compare Microbes, Different from animals, Classification (based on properties)
Taxonomical Position: How the bacteria placed in our life forms? 
Infection: Infection Route,Temperature, Air, Food, Insects, Contact-Poor-Hygiene.
Defense: First-Line, Specific:(Phagocytic-cellular-humoral) immunity
Physical & Chemical Controls Sterilization & Pasteurization
Chemotherapy: Sulphonamides,Antibiotics: Action-Site, Aminoglycoside-Macrolides, peptide_bond
Resistance: To antibioitc, Plasmid Mediated transfer