MICROORGANISMSMICROORGANISMS

The Good,the Bad,

and the Ecological

BACTERIA….THE GOODBACTERIA….THE GOOD

Maintain equilibrium in the living world as:

ProducersDecomposersNitrogen Fixers

BACTERIA….THE GOODBACTERIA….THE GOODMany Human Uses:

Food productionCleaning up oil spillsHuman digestion

•Protection from infection•Vitamin production

BACTERIA….THE BADBACTERIA….THE BAD

Disrupt equilibrium by:Causing disease (pathogenic)

Many resources (time and money) needed to control/eliminate them.

BACTERIA….THE BADBACTERIA….THE BAD

They use cells for food.They release toxins that damage cells.

BACTERIA….THE BADBACTERIA….THE BAD

Lyme disease :

TetanusTuberculosisDiphtheriaBacterial

Meningitis

Strep ThroatTooth DecayAnthraxGonorrheaSyphillisPneumonia

Many examples of disease

BACTERIA….THE BADBACTERIA….THE BAD

Can be controlled by heat sterilization, disinfectants, vaccines, antibiotics, proper storage, cooking and handling of food.

BACTERIA….THE BACTERIA….THE ECOLOGICALECOLOGICAL

DecomposersNitrogen FixersFood chainsSymbiotic relationships

Other living things could not live without them.

Draw picture to illustrate at least one way humans find Bacteria useful

Draw a picture to illustrate how bacteria help maintain ecological equilibrium in the environment

Explain the two reasons that Bacteria may be pathogenic. Draw a picture to illustrate one disease caused by bacteria.

Try This ! Try This ! MTV – Make Learning VisualMTV – Make Learning Visual

Common Bacterial DiseasesCommon Bacterial Diseases

PsoriasisPsoriasis

ConjunctivitisConjunctivitis

UlcersUlcers

Staph infectionsStaph infections