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Viruses

This article explores the debate surrounding whether viruses are considered living or non-living entities. It delves into their structure, the need for a host cell to reproduce, and their role as pathogens. It also explains how viruses cause infections and ways to protect oneself from them. Additionally, the article touches upon the topic of microbes and their classification, focusing on bacteria and their characteristics. Lastly, it mentions the treatment of bacterial infections using antibiotics.

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Viruses

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  1. Viruses Are they alive ?

  2. What is a Virus? A non – living, infectious particle made only of a strand of DNA or RNA surrounded by a protein coat. This protein coat is known as a capsid. Why would some scientists debate that a virus was living?

  3. Why are viruses considered non-living? Virusescan not reproduce on their own. A host cell is needed for a virus to reproduce and make proteins.

  4. A virus is referred to as a pathogen.A pathogen is any organism or nonliving particle that can cause an infectious disease.

  5. Tobacco Mosaic Bacteriophage Influenza

  6. How do Viruses make us sick? • Viruses cause 2 types of infections. Use your book and write the analogies used to describe each. Refer to pg 549

  7. How do you protect yourself from a virus? Get Vaccinated!!

  8. What are Microbes? • Microbes are tiny organisms that can only been seen under a microscope. • They are EVERYWHERE and can be both beneficial and harmful. E Coli Oil Eating Bacteria

  9. Archaebacteria & Eubacteria Characteristics of Bacteria Bacteria are microbes. Cyanobacteria Domains: Archae & Bacteria Kingdoms: Archaebacteria & Eubacteria Prokaryotic Cells: cells without a defined nucleus and cell organelles Unicellular Organisms Microorganisms

  10. Helps classify the 2 bacteria kingdoms. Eubacteria has peptidogycan in the cell wall. Gram stains purple. Archaebacteria does not have peptidoglycan in the call wall. Gram stains pink. Peptidoglycan Archaebacteria Eubacteria

  11. Archaebacteria & Eubacteria 3 Basic Shapes

  12. Archaebacteria & Eubacteria

  13. How will a doctor treat a patient with a bacterial infection? Prescribe Antibiotics

  14. Live Bacteria VideosRowland Institute At Harvard Swarming E. Coli Swimming Synechococcus Swimming Rhodobacter

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