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Science Vocab
science vocab
| Term | Definition |
|---|---|
| Cells | tiny things that make up all living thigs |
| Organism | a living thing |
| metabolism | the breaking down of food for energy |
| system | parts working together for a specific purpose |
| mechanical digestion | the physical process of breaking down food into small molecules |
| chemical digestion | the chemical breakdown of food by enzymes and acids |
| enzymes | substances used to chemically breakdown food into smaller substances |
| small intestine | Organ in digestive system where food is broken down into the simplest molecules |
| Villi | Structures in small intestine where nutrients are absorbed |
| Diffusion | The movement of molecules from and area of greater concentration to lesser concentration |
| Osmosis | The movement of water from an area of greater concentration to lesser concentration across a cell membrane. |
| Cell Membrane | A semipermeable membrane surrounding the cytoplasm of the cell. |
| Cytoplasm | The water like material inside a cel |
| Plasma | Clear portion of blood that carries nutrients and water. |
| Pepsin | Enzyme that is used to chemically breakdown protein |
| stomach | Digestive organ with acidic environment where food is chemically and mechanically broken down. |