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Transcript
Unit 5: Pathology Notes Name: _____________________________________________________ Date: ______________________ Pathogens Disease: any change that disrupts the normal function of one or more body systems. There are two types of diseases: o Noninfectious: a disease that is inherited. It ______________________ spread from one person to another o Infectious: a disease that ___________ be spread from one organism to another. A PATHOGEN is a microbe (__________________________________________) that can cause an infectious disease Pathogen #2: Virus Definition: ____________________________________________ VIRUS PARTS (all viruses have these) 1. What it’s called: CAPSID What it does: 2. What it’s called: GENETIC MATERIAL (DNA OR RNA) What it does: HIV Virus (photographed using an electron microscope) How are viruses like keys? VIRUSES MUST BE INSIDE A CELL TO REPRODUCE! How viruses hijack our cells: # Verbal Description Visual Description 1 2 3 4 5 Why are viruses not considered living things? Characteristics of living things Characteristics of a virus? (yes/no) 1. 2. 3. 4. 5. 6. KEY QUESTION: Why could viruses have not have existed on earth before living things first appeared? How to Viruses cause diseases? _______________________________________________________________________________________________ _____________________________________________________________________________________________________________________________ Examples of diseases caused by viruses: