Viruses and HIV

Viruses and HIV - Viruses Is a Virus a Living Organism?...

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Unformatted text preview: Viruses Is a Virus a Living Organism? Chapter 1 Properties of life Cellular Respiration Reproduction Metabolism Homeostasis Heredity Responsiveness Growth and development Viruses are not living organisms Viruses do not Grow Have homeostasis Metabolize Viruses do Infect cells and use the cell to make more viruses Cause disease in many organisms Parts of a Virion (a virus particle) Nucleic Acid RNA or DNA Capsid protein coat that surrounds the DNA or RNA in a virus Lipid Membrane a membrane around the capsid in many kinds of viruses; helps the virus enter cells (enveloped viruses; without the membrane, the virus is naked) Made of proteins, lipids, and glycoproteins RNA or DNA? Viruses with RNA Human immunodeficiency virus (HIV) Influenza viruses Rabies Viruses with DNA Warts Chickenpox mononucleosis Virus Shapes Helical Rodlike with capsid proteins winding around the core in a spiral Tobacco Mosaic Virus Virus Shapes Polyhedral Has many sides Most polyhedral capsids have 20 sides and 12 corners Virus Shapes Polyhedral capsid attached to a helical tail. How do viruses replicate?...
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Viruses and HIV - Viruses Is a Virus a Living Organism?...

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