Bacteria in Your Life Beneficial & Harmful

Beneficial antibiotics- limit the growth of bacteria (kill) saprophytes- use dead organisms as food and energy sources nitrogen fixing bacteria- change nitrogen in the air into forms that plants and animals can use Bioremediation- clean up or remove environmental pollutants Bacteria in food- cheese, buttermilk, sauerkraut, pickles, soy sauce Beneficial

watch 78% of the air is nitrogen plants or animals can’t use it in the this form nitrogen fixing bacteria live in roots of beans & peanuts and have bacteria that convert the nitrogen into usable forms watch

Harmful Bacteria Pathogens- any organism that causes disease they produce toxins (poisonous substances) *botulism -Endospores- produce a thick wall and can exist for years Harmful Bacteria

heating food to temperatures that kill harmful bacteria but do not change the taste of the food juice ice cream yogurt milk Pasteurization

Treating Bacterial Disease -with antibiotics (kill bacteria) with vaccines ( prevent disease by using your white blood cells to build up an immunity to the disease) Treating Bacterial Disease