Bacteria PPT

1. MICROORGANISMS
The Good,
the Bad,
and the Ecological

2. BACTERIA….THE GOOD
Maintain equilibrium in the
living world as:
Producers
Decomposers
Nitrogen Fixers

3. BACTERIA….THE GOOD
Many Human Uses:
Food production
Cleaning up oil spills
Human digestion
•Protection from infection
•Vitamin production

4. BACTERIA….THE BAD
Disrupt equilibrium by:
Causing disease
(pathogenic)
Many resources (time and
money) needed to
control/eliminate them.

5. BACTERIA….THE BAD
They use cells for food.
They release toxins that
damage cells.

6. BACTERIA….THE BAD
Many examples of disease
Lyme Strep Throat
disease : Tooth Decay
Tetanus Anthrax
Tuberculosis Gonorrhea
Diphtheria Syphillis
Bacterial Pneumonia
Meningitis

7. BACTERIA….THE BAD
Can be controlled by heat
sterilization, disinfectants,
vaccines, antibiotics, proper
storage, cooking and handling
of food.

8. BACTERIA….THE
ECOLOGICAL
Decomposers
Nitrogen Fixers
Food chains
Symbiotic relationships
Other living things could not live
without them.

9. Try This !
MTV – Make Learning Visual
Draw picture to illustrate
at least one way humans
find Bacteria useful
Draw a picture to Explain the two reasons
illustrate how bacteria that Bacteria may be
help maintain ecological pathogenic. Draw a
equilibrium in the picture to illustrate one
environment disease caused by
bacteria.

10. Common Bacterial Diseases

11. Psoriasis

12. Conjunctivitis

13. Ulcers

14. Staph infections