1. Eukaryotic Cell Organelles Kara Stevens

2. Nucleus Area that contains the DNA

3. Nucleolus Inside the nucleus Makes ribosomes

4. Nuclear Membrane The “skin” of the nucleus

5. Nuclear Pores Small holes in the nuclear membrane that allows materials to pass in and out

6. Chromatin Loose DNA inside the nucleus

7. Smooth Endoplasmic Reticulum (E.R.) Transports materials Assembles lipids to transport to cell membrane Tube-like structures

8. Rough Endoplasmic Reticulum (E.R.) Assembles proteins Transports proteins and other materials Has ribosomes all over the outside of it

9. Ribosome Small dot-like structure Makes proteins Made in the nucleolus Floats everywhere in cytoplasm and on the rough E.R.

10. Golgi Body (Golgi Apparatus) Repackages materials for use elsewhere

11. Lysosome Recycles and gets rid of old pieces of the cell and the organelles Uses enzymes to do this – a natural chemical to speed up reactions

12. Mitochondria Powerhouse (makes energy) Turns food into energy Cellular Respiration is done here Lots of them in muscle cells; not so many in skin cells

13. Vacuoles Storage place for extra food and water Plant cell = large vacuole Animal cell = small vacuoles

14. Cell Membrane Lipid bi-layer Protects the cell Regulates what goes in and out of the cell

15. Cell Wall Rigid layer on the outside of plant cells Provides strength and structure The only organelle left after the death of a plant (ex: log of a tree)

16. Cytoplasm Gel-like material that everything floats in Made of mostly water

17. Centrioles Part of cell reproduction

18. Microtubules Help give structure to the cell

19. Chloroplast Green organelle where photosynthesis happens Only in plants Filled with green pigment stacks called Chlorophyll