PPT-Bacteria & Viruses Ch

19 Ch 23 and more Bacteria amp Virus Overview Interesting stuff We live with bacteria and viruses constantly but most people dont know much about them In this chapter we learn both the good and bad of each. Chapter 11 . Standard Course of Study. 6.03: Compare the life functions of protists.. 7.01: Compare and contrast microbes.. Students will be able to explain the differences between protists, bacteria, . A . virus. is a small . infectious agent. that can replicate only inside the living cells of organisms. Most viruses are too small to be seen directly with a . microscope. . Viruses infect all types of organisms, from . Invasive Diseases. Infectious Disease. Also known as . Contagious Disease. Communicable Disease. Transmissible Disease. Caused by a pathogen that causes disease. Not all infections cause disease that can be transmitted. Introduction. What do we know about? . Size?. (. animace. ) . Invisible with naked eye. Structure?. Cells (bacteria, fungi, protozoa). Acellular. particles (viruses). Where are microbes found?. Everywhere: . Viruses . A nonliving (?) particle made of proteins, nucleic acids, and sometimes lipids (fats). Viruses only reproduce by infecting living cells. Most viruses can only be seen with an electron microscope. 21.4 Prokaryotes—Enduring, . Abundant, and Diverse. Prokaryotes. Structurally simple cells that lack a nucleus. Evolved before eukaryotes . Abundance and Metabolic Diversity. Prokaryotes are Earth’s most abundant organisms. Days . W. ork . in Biotech. Steven . Pincus. , AVP Virology and Analytical Development. Cari. . Sadowski. Associate Principle Scientist Group Leader Virology. Health . Science Teachers Conference . How they affect us!. What are Viruses. A virus is a tiny, non-cellular, . non-living. particle that enters and then . reproduces inside a living cell. .. All viruses have . two basic parts. : . A . protein coat . Microbes. Bacteria are single-celled organisms. Bacteria have the tools to reproduce themselves, by themselves. They are filled with fluid, and may have threadlike structures to move themselves, like a tail.. VOCABULARY. Virus. Capsid. Envelope. Human . Immunodeficiency Virus (HIV. ). Influenza. Lytic Cycle. Lysogenic Cycle. Lysis. Retrovirus. Prerequisite questions. What are the eight characteristics which all living things have in common. VIRUS. IN . YOUR . NOSE. Look out, you’re surrounded! Bacteria and viruses are all around us….. Examples:. Bacteria Used in Food Making. Bacteria used in Digestion (. E. coli. ). Some bacteria cause disease (pathogenic). are prokaryotes whose cell walls contain peptidoglycan.. Organizing Life’s Diversity. Eubacteria are a diverse group that can survive in many different environments.. . . The process of transfer of virus into host is referred as . TRANSMISSION. and this is an important step in the life cycle of viruses.. Person to person infections are said to be . HORIZONTAL. . ANSWERS CAN BE FOUND IN CHAPTER 19 SECTION 2 on VIRUSES (you need to look at the WHOLE SECTION).. HELPFUL START PAGE= 474. Bacteria & Viruses . What’s the difference??. A little review…. A little review….