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Learning Set 2
Good Friends and Germs
| Term | Definition |
|---|---|
| symptoms | an indication in your body that you have a disease |
| gastrointestinal | related to the stomach and intestines |
| diarrhea | frequent and watery bowel movements |
| infection | the growth of germs in your body |
| parasite | organism that lives and feeds either inside of or attached to another organism and does harm to that organism |
| sanitation | the disposal of sewage and waste. |
| hygiene | things people do to stay healthy |
| dehydration | a condition in which the body does not have enough fluid to function properly |
| stool | the solid waste that is produced by the body |
| antibiotic | a type of medicine that kills germs or prevents them from growing |
| cell | the structural and functional unit of all living organisms. (What a living thing is made of and what makes it work.) |
| magnifies | makes something look larger, but does not actually enlarge the physical size of the object |
| cell theory | a theory about the relationship between cells and living things |
| organelle | a specialized structure in a cell |
| nucleus | the control center of the cell |
| chromosomes | contain the genetic material of the cell |
| genetic material | contains the information that determines the traits of an organism; hereditary material |
| cell membrane | surrounds the cell; controls the movement of materials into and out of the cell |
| cytoplasm | the watery fluid that contains the organelles of the cell |
| mitochondrion | provides the cell with energy |
| cell respiration | the process by which food and oxygen are converted to energy, carbon dioxide, and water. |
| vacuole | a storage area for food and water |
| chloroplast | organelle that contains the green pigment chlorophyll used in photosynthesis |
| chlorophyll | a green pigment |
| photosynthesis | the process by which plants make sugar and oxygen using light, water, and carbon dioxide |
| cell wall | protects and supports the plant cell |
| compound light microscope | a microscope that has more than one lens and uses light transmitted to your eye to form an image |
| field of view | the circle of light you see when you look through a microscope |
| diameter | the length of the line through the middle of a circle from one side to the other |
| ratio | a comparison of two numbers |
| bacteria | the most common form of one-celled organisms |
| host | an organism that harbors (provides food and a place to stay) for another organism, such as a virus |
| microbe | an organism that can be seen only through a microscope |
| infectious agent | something that can get inside your body, multiply, and cause disease |
| droplet transmission | a way that an infectious disease can be transmitted. Droplets containing an infectious agent are released into the air when an infected person sneezes, coughs, talks, or exhales. |
Created by:
Rosiebigfoot
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