Presentation on theme: "How do viruses, bacteria, and protists effect our lives in both positive and negative ways? By kailey nelson."— Presentation transcript:
1 How do viruses, bacteria, and protists effect our lives in both positive and negative ways? By kailey nelson
2 How Bacteria Effects Our Lives Positive:Archaebacteria produce Methane (a major component in about 20% of earths deposits of natural gas)Heterotrophic eubacteria are decomposers and break down large chemicals in dead organisms into small chemicalsSome bacteria help make medicinesSome help digest foodSome make vitamins your body needsNegative:Some bacteria cause food to spoil when they break down the chemicalsSome cause diseases/illnesses, which can be mild (like strep throat) or life threatening (like Tuberculosis )
3 How Viruses Effect Our Lives Positive:Scientists take advantage of the fact that viruses are cells so they use them as messengers by and good at getting inside taking out the bad genetic material of a virus and put in information that the virus will later deliver to cells that don't work properly. The information the virus gives the cell helps it do its job right.Negative:Viruses can cause harm to any living thing, not one of the six kingdoms is completely safe from themMany viruses cause life threatening diseases
4 How Protists Effect Our Lives PositiveSome clean intestines out.Some protists break cellulose down into carbohydrates.protists form a broad base across the bottom of the food chainsupply approximately one-half of the world’s oxygen (unicellular algae compose a large portion of the world’s phytoplankton).Protists, along with bacteria and fungi, are responsible for decomposing and recycling nutrients..NegativeMany are parasitic. Some examples are: Plasmodium, a protist that cause malaria, Trypanosoma, a protist that cause African sleeping sickness, and dinoflagellate that cause the red tide.