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organelles
structures in human cells
| Term | Definition |
|---|---|
| Rough endoplasmic reticulum | ER with ribosomes attached that make and process proteins |
| Smooth endoplasmic reticulum | ER without ribosomes.It makes and processes lipids and destroys toxic substances |
| Ribosomes | small organelles that synthesise proteins |
| Mitochondria | organelles with a double membrane. They perform cellular respiration providing energy for the cell |
| Cytoskeleton | network of interlinking protein filaments that give the cell its shape. they also support the movement of organelles inside the cytoplasm or when the cell divides |
| Centrioles | cylinders formed by tubules that direct the movement of cilia and take part oin the sharing of genetic material during cell division |
| Vacuoles | small sacks that store various substances |
| Lysosomes | membrane sacs that contain digestive enzymes |
| Golgi apparatus | organelle formed by several flattened sac-like membranes and receives substances from the ER and passes them on to other organelles so they can be secreted |
| Cell membrane | a thin layer that separates the cell from its environment |
| Cytoplasm | the fluid that fills a cell, and contains the cell organelles. |
| Nucleus | stores genetic material that contains essential information to control cell functions |