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vocab. #2 study
science
| Question | Answer |
|---|---|
| alveoli | small sacs in lungs where gases are exchanged |
| cell | basic building block of all living things |
| cell division | when cells divide to make new cells |
| cell membrane | surronds and protects the cell |
| cytoplasm | jelly-like fluid that fills up the cell and holds cell parts |
| diaphragm | muscle under the lungs that is part of the respiratory system |
| digestive system | organ system that breaks down food so the body can absorb nutrients |
| lung | sponge-like organ used to take air in the body |
| nucleus | control center of the cell |
| nutrient | substance the body uses for energy, growth and repair |
| organ | group of tissues that work together to preform a specific function |
| organ system | group of organs that preforms a major function in the body |
| PROTEIN | LARGE COMPLEX MOLECULE NEEDE FOR TISSUE GROWTH AND REPAIR |
| respiration | body process that uses oxygen to release energy in food |
| respiratory system | system that takes in oxygen and removes carbon dioxide |
| tissue | groups of similar cells with the same function |
| trachea | main tube, or windpipe, through which the air passes to and from the lungs |
| villi | tiny finger-like bumps in the small intestine |