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GSLS
6th Grade Pathogens
Question | Answer |
---|---|
A virus | is a small infectious agent that replicates only inside the living cells of other organisms. They can infect all types of life forms, from animals and plants to microorganisms. |
Bacteria | are microscopic living organisms, usually one-celled, that can be found everywhere. They can be dangerous, such as when they cause infection, or beneficial, as in the process of decomposition. |
When a virus enters your body | it invades some of your cells and takes over the cell machinery, redirecting it to produce the virus |
Viruses are even smaller than | bacteria |
A fungus or fungi | is any member of the group of eukaryotic organisms that includes unicellular microorganisms such as yeasts and molds, as well as mushrooms |
bacteria are single-celled | prokaryotes |
Bacteria are much smaller than fungi, do not have | nuclei or other organelles. |
Eukaryotic cells | contain membrane-bound organelles, including a nucleus |
Prokaryotic cells | do not contain a nucleus or any other membrane-bound organelle. |
Parasite | an organism that lives in or on another organism (its host) and benefits by deriving nutrients at the host's expense. |
Disease - | A sickness in humans, animals, or plants which often has a known cause and can be identified by symptoms |
Infectious - | A disease that can be passed from one person to another, caused by a pathogen |
Noninfectious | A disease that cannot be spread from person to person, caused by genetics or environmental factors |
Pathogen | Something that causes a disease (ex. Virus, Bacteria, Fungi, Parasites) |
Virus | A small particle that must have a host cell to replicate |
Fungi - | a single-celled or multi-celled plant-like organism |
Antibiotic | A substance that kills or inactivates bacteria |
Antiviral | A substance that destroys or inactivates viruses |