The Good the Bad amp the Ugly Most bacteria are harmless many are beneficial and a few are harmful It is a misconception that all bacteria are harmful Although some bacteria are harmful ID: 1047980
Download Presentation The PPT/PDF document "BACTERIA Harmless, Beneficial and Harmfu..." is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
1. BACTERIAHarmless, Beneficial and Harmful Microorganisms
2. The Good, the Bad, & the UglyMost bacteria are harmless, many are beneficial, and a few are harmfulIt is a misconception that all bacteria are harmful. Although some bacteria are harmful, most are not.
3. Examples of Harmful BacteriaClostridium Botulinum and Salmonella enteritidis are both bacteria that cause food poisoning.Clostridium botulinumSalmonella enteritidis
4. Another use…
5. Bacillus anthracis causes ANTHRAX which is an infectious disease that is used in biological warfare.This disease usually occurs in wild and domestic lower vertebrates, such as cattle, sheep, goats, camels, antelopes, etc.
6. Staphylococcus is a bacteria that causes soft tissue infections as well as toxic shock syndrome.
7. Streptococcus pneumoniae is a bacteria that causes pneumoniaOther Streptococcus species cause illnesses such as strep throat and flesh eating disease.
8. Examples of Beneficial BacteriaBacteria are used in the production of several foods and beverages:CheeseYoghurtButtermilkSour creamPicklesVinegarbeer
9. Bacteria in IndustryOne type of bacteria can digest petroleum, therefore it can be used to help clean up oil spills.Some bacteria remove wastes and chemicals from waterOther bacteria are used to synthesize drugs and chemicals.
10. SymbiosisClose relationship between 2 species in which at least one of the species benefits from the otherBacteria form symbiotic relationships with members from the other four kingdoms.
11. SaprophytesOrganisms that use complex molecules of a once-living organism as its source of energy and nutritionBreak down dead plant and animal material, thus serving a role in the environment as recyclers (i.e. decomposers)Their actions result in nutrient flow.
12. Escherichia coli form a symbiotic relationship with humansThese microbes inhabit our gut, thus gaining free transportation and food, while we gain help in digesting our food.
13. Rhizobium are nitrogen fixing bacteria; they convert nitrogen from the air into a form plants can use.These bacteria live in the nodules of the plant roots.
14. Thiobacillus ferrooxidans is a bacterium that extracts copper from low-grade copper ore.