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Term | Definition |
---|---|
Cells | Tiny units that make up all living things. |
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 smaller 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 cell. |
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. |