Presentation is loading. Please wait.

Presentation is loading. Please wait.

Kingdom Eubacteria Eu = new or true Shape of bacterial cells a) Cocci - round bacterial cells. (cox-eye). b) Bacilli - rod- shaped bacterial cells. c)

Similar presentations


Presentation on theme: "Kingdom Eubacteria Eu = new or true Shape of bacterial cells a) Cocci - round bacterial cells. (cox-eye). b) Bacilli - rod- shaped bacterial cells. c)"— Presentation transcript:

1

2 Kingdom Eubacteria Eu = new or true

3 Shape of bacterial cells a) Cocci - round bacterial cells. (cox-eye). b) Bacilli - rod- shaped bacterial cells. c) Spirilli (corkscrew) - spiral-shaped bacterial cells A B C

4 Nutrition in Eubacteria 1.Heterotrophic  use food produced by other organisms 2.Saprotrophic  feed on dead or decaying matter 3.Autotrophic  make their own food

5 Beneficial Bacteria The overwhelming majority of bacteria are completely harmless A teaspoon of soil generally contains between 100 million and 1 billion bacteria

6 5 types of friendly bacteria 1. Nature’s recyclers 2. In our body 3. Food production 4. Oil spills 5. Nitrogen fixing bacteria

7 1) Saprotrophic Bacteria Nature’s recyclers *release nutrients back into the environment *man-made landscapes often lack these good bacteria A scanning electron micrograph of the aerobic soil bacterium Pseudomonas fluorescens. The bacterium uses its long, whiplike flagellae to propel itself through the water layer that surrounds soil particles.

8 2) Our bodies:  Escherichia coli is a normal resident of the intestines in healthy people  it helps us break down food waste products  We pretty much depend upon E. coli in our intestines for our source of Vitamin K and B- complex vitamins.

9 3) Food production  Streptococcus lactis bacteria convert milk to cheese by causing the souring of milk that begins the cheese making process,  bacteria convert grapes to wine and then wine to vinegar  The name for this process is FERMENTATION

10 Fermentation Fermentation  A chemical process that occurs when bacteria change sugar into various products  It is a way that bacterial cells get energy without using oxygen Examples:  Grapes-----  Wine  Vinegar  Milk  Yogurt or cheese  Cabbage  Sauerkraut

11 4) Oil spills  Naturally occurring, oil-eating bacteria are used in response to crude oil spills  without causing further harm to the environment.

12 How do oil spills cause harm? * Birds die from oil spills if their feathers are covered in oil. The bird will then be poisoned because it will try to clean itself. *Oil may also cause the death of an animal by entering the animal’s lungs or liver More than half of the seal pups living off the coast of Mid-Norway are contaminated with oil every spring

13 5) Nitrogen Fixing Bacteria  some plants (peanuts, beans, peas) have pockets of bacteria in their roots  can take Nitrogen from the air and make it useful for plants and animals by making the soil fertile  helps farmers save $ on fertilizers  plants use Nitrogen to make needed proteins


Download ppt "Kingdom Eubacteria Eu = new or true Shape of bacterial cells a) Cocci - round bacterial cells. (cox-eye). b) Bacilli - rod- shaped bacterial cells. c)"

Similar presentations


Ads by Google