Feb. 4th Turn Ins: Sci. Fair. Letter (late) HGD Zoo Bellwork Check & Tape Intro. To Microbiology Virus & Bacteria Notes & Video *Complete Wkst 3 & 4 in Classification Pkt. Finish as homework if needed. It is due tomorrow. DO-SWBAT describe viruses and bacteria DQ- Microbiology True & False (next slide) 1.Microorganisms are very large. (True or False) 2.Living things are organized, grow, reproduce, and respond to stimuli. 3.Living things only need energy to live. 4.Archaea are multicellular organisms that are parasites. 5.Bacteria are decomposers. 6.Bacteria are always harmful. 7.Viruses are living things that are made of cells. 8.Viruses require a host to reproduce. 9.Bacteriophages are bacteria that infect viruses. 10.Protists are prokaryotic like bacteria. 11.Algae is an example of a protist. 12.Plankton live in marine ecosystems and produce oxygen. 1.Microorganisms are very large. False 2.Living things are organized, grow, reproduce, and respond to stimuli. True 3.Living things only need energy to live. False 4.Archaea are multicellular organisms that are parasites. False 5.Bacteria are decomposers. True 6.Bacteria are always harmful. False 7.Viruses are living things that are made of cells. False 8.Viruses require a host to reproduce. True 9.Bacteriophages are bacteria that infect viruses. False 10.Protists are prokaryotic like bacteria. False 11.Algae is an example of a protist. True 12.Plankton live in marine ecosystems and produce oxygen. True Viruses Definition- A nonliving disease-causing particle that uses the materials inside host cells to make copies of itself. It consists of genetic material enclosed in a protein coat. HIV Virus Brazil: Zika Virus Disc. Ed. Characteristics of viruses: Microscopic Infectious agent Found in almost all life forms Requires a host cell for reproduction The study of viruses is called virology Adapt to immune responses More difficult to treat than bacteria Viral Disease Examples AIDS Burkitt's lymphoma chicken pox colds Colorado tick fever dengue encephalitis fever blisters genital warts gastroenteritis genital herpes German measles hepatitis influenza leukemia liver cancer measles mononucleosis mumps oral herpes polio rabies shingles smallpox virus hemorrhagic fever warts yellow fever. Deadliest Bacteria Reading & Video Clip How are viruses classified? Classified based on: Shape and genome arrangement How do viruses infect you? Virus Structure Current Research Bacteria: Disc. Ed. BACTERIA Bacteria Unicellular Prokaryotic Ubiquitous (found everywhere) Types: Cyanobacteria have chloroplasts, serve as food and oxygen producers Decomposers break down dead stuff for energy, serve as one of Earths natural garbage disposals Symbiotic bacteria (live together with other organisms) Parasitic bacteria cause illness. Bacteria Structure Reproduction by Binary Fission Bacteria Classification Shape: Round, Rod, or spiral Gram Stain: Positive or Negative Bacteria Helpful Bacteria Sewage treatment plants Clean up oil spills Nitrogen Fixation (makes nitrogen available to plants) Produce vitamins B and K in our intestine Help digestion and absorption Limit growth of bad bacteria Read The Good, the Bad, and the Ugly Bacteria Harmful Bacteria Tuberculosis Cholera Salmonella Staphylococcus Streptococcus Botulism Infant Diarrhea Produce toxins (poisons) Secondary Infections View Understanding Bacteria Discovery Ed.