Across 1. ribosome studded membrane, makes phospholipids 2. storage compartment for a plant cell, fills with water and creates turgour pressure 4. nucleus like region in a prokaryotic cell that is not separated from the rest of the cell by membranes 10. the most important organelle (houses DNA) 12. hollow tubes of protein that create fibers and provide reinforcement for a cell 14. receives refines stores and distributes chemical products of the cell 16. all living things are composed of cells & form from previously existing cells 19. hyrdophilic head hydrophobic tails & contains proteins that help regulate traffic 20. describes the fluidity of proteins 22. sacs made of membrane that transfer segments between organelles 23. rigid outer membrane that supports plant 25. helps make cilia and flagella found in lower plants 26. photosynthetic organelles of plants and algae 27. a double membrane that separates the nucleus from the cytoplasm 28. "little organs" that perform specific functions (prokaryotic cells don't have these) 29. carries genes made of DNA 30. large vesicles with many functions that exist in protists

Down 1. works together with RNA to make proteins 3. separates the internal ER compartment from cytosol, produces large variety of molecules 5. membrane enclosed sac of digestive enzymes 6. fibers formed from long DNA molecules and associated proteins in the nucleus 7. Bacteria and Archaea domains oldest, smaller, simpler, no organelles but has membranes 8. the site where the components of ribosomes are made 9. lacks ribosomes makes lipids and detoxifies drugs 11. shorter, more numerous than flagella, move in back and forth motion 13. Eukarya domain (including protists, plants, fungi, and animals) has organelles 15. membranes of cells are made of these 17. includes the nuclear envelope, endoplasmic reticulum, golgi apparatus, lysosomes, and vacuoles 18. network of protein fibers extending through the cytoplasm that serves as both skeleton and muscles for the cell 21. propels cells with an undulating whiplike motion 24. THE POWERHOUSE OF THE CELL