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Bacteria are prokaryotic (lack a nucleus)

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Presentation on theme: "Bacteria are prokaryotic (lack a nucleus)"— Presentation transcript:

1 Bacteria are prokaryotic (lack a nucleus)
The Bacterial Cell Bacteria are prokaryotic (lack a nucleus)

2 Shape of Bacteria Round – cocci Example – strep – throat
(Streptococcus)

3 Shape of Bacteria Rod-shaped - bacilli Example – E. coli
(Escherichia coli) Usually found in the intestines

4 Shape of Bacteria Spiral shaped – spirilla Example – Lyme disease
(Borrelia burgdorferi)

5 Movement of Bacteria Flagella – a long whip-like structure that helps the cell move by spinning in place like a propeller.

6 A bacterial cell can have many flagella, one or none.
If a bacterial cell does not have a flagella, they depend on air, water or clothing to carry them around.

7 Obtaining Food Autotrophs – make their own food.

8 Obtaining Food Heterotrophs – obtain food by eating autotrophs or other heterotrophs.

9 Types of Bacteria Helpful Bacteria
Food: cheese, sauerkraut, pickles, sour cream and yogurt

10 Harmful Bacteria Illness and Health Strep throat and food poisoning

11 Antibiotic A chemical that can kill bacteria.


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