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Cell Structure
Term | Definition |
---|---|
Cells | The basic unit of structure and function in living things. |
Cell Wall | Protects and supports the cell. |
Cell Membrane | Controls what enters and leaves the cell. |
Nucleus | The control center of the cell. |
Mitochondria | Convert energy from food molecules to energy the cell can use. |
Endoplasmic Reticulum | Carries proteins and other materials from one part of the cell to another. |
Ribosomes | Produce proteins inside cells. |
Golgi Bodies | Organelles that package and deliver proteins. |
Vacuoles | Store food and other materials needed by the cell. |
Lysosomes | Contains chemicals that break down food particles and old cell parts. |
Chloroplasts | Organelles that use energy from sunlight to produce food. |
Resolution | Refers to how sharp an image is. |
Element | A substance that cannot be broken down into a simpler substance. |
Compound | Two or more elements chemically combined. |
Enzymes | Catalyst that speeds up chemical reactions. |
Diffusion | Movement of molecules from an area of high concentration to an area of low concentration. |
Osmosis | Diffusion of water through a selectively permeable membrane. |
Passive Transport | Refers to the movement of materials through the cell membrane without using the cells energy. |
Active Transport | Refers to the movement of materials through the cell membrane when the cells energy is required. |