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Pathogens 8.L.1.1

8.L.1.1 Summarize the basic characteristics of viruses, bacteria, fungi and p

TermDefinition
Pathogen An organism or virus that causes a disease. Example: virus, bacteria, fungi, and parasite
Virus A tiny, nonliving particle that enters and then reproduces inside a living host cell. Examples: Influenza (flu), common cold, West Nile
Parasite An organism that benefits by living with, on, or in a host in a parasitic interaction. The parasite benefits, and the host is usually harmed.
Bacteria Single-celled organisms that lack a nucleus (prokaryotic). Some harmful forms can be treated with antibiotics.
Mutate To change; viruses can do this easily which can make it difficult to create vaccines.
Fungi (fungus) A eukaryotic organism that has cell walls, uses spores to reproduce, and heterotroph that feeds by absorbing its food. Example: mushrooms
Vaccine A weakened or killed pathogen that triggers the immune response into action so a person can become immune to a disease. Given through injection (shot), by mouth, or through nasal spray.
Antibiotic A chemical that kills bacteria or slows their growth without harming body cells.
Anti-viral medicine A chemical that can help stop the infectious parts viruses from being released.
Noninfectious disease Diseases that are not caused by pathogens. Example: allergies, diabetes, cancer, cardiovascular disease, etc.
Infectious (communicable) disease A disease that can be spread between organisms.
Host An organism that provides a source of energy for a virus or another organism
Host cell A cell that is taken over by a virus and used to reproduce.
Created by: mbmetzger