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Bacteria Fun Facts:. 99% of Bacteria are helpful: help with digestion, used to make food, break down oil spills, purify water at sewage treatment plants - PowerPoint PPT Presentation
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Classified by Shape
Streptococcus pyogenesLactobacillus acidophilislacto = milkbacillus = rod shapedphilus= love of
strepto = in chainscoccus = round shaped
Bacteria VirusNumber of cells: Unicellular No cells; not living
Nucleus: No No because it has no cells
Reproduction:Fission- a form of asexual reproduction
Sexual
Invades a host cell and takes over the cell causing it to make copies of the viral DNA. Destroys the host cell releasing new viruses.
Can cause disease?: Yes Yes
Size: Larger (1000 nanometer)1 nm = one billionth of m Smaller (20 – 400 nm)
How is it treated?: Antibiotics
Vaccines prevent the spread and antiviral medications help to slow reproduction but can not stop it completely.
Shape:
Bacterial Infections Viral DiseasesPneumonia Polio
Strept throat [chains] Measles
Staph Infection [clusters] Rabies
Food Poisoning Chicken Pox
Scarlet/Rheumatic fever Common Cold/Sinus discomfortFlu/Cold Sore
Tetanus Hepatitis
Tuberculosis HIV
The virus is about to attack the bacterium.
The virus injects its genetic material
into the bacterium.
The bacterium explodes after it is forced to make
copies of the virus!http://www.youtube.com/watch?v=Rpj0emEGShQEbola
400 x- cocci shaped 400 x- cocci shaped but in a sheath causing them appear rod shaped
OscillatoriaNostoc
- Produce food in lakes and ponds- In large amounts can cause death to life in lake due to consuming all oxygen
Bacteria Fun Facts: 99% of Bacteria are helpful: help with digestion, used to make food, break down oil spills, purify water at sewage treatment plants
90% of the cells in/on your body are bacteria.
Scientists estimate bacteria produce nearly ½ of oxygen found in atmosphere
One square inch of skin contains more than a half a million bacteria