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Across 1. the tissues that make up the nervous system 2. when the organelles and macromolecules are distributed between two daughter cells 7. the thing in cells that tells them how many times to divide (two words) 8. the domain comprised of eukaryotic cells 9. type of stem cell that can give use to most cell type 12. the division of somatic cells 14. the semipermeable outside layer of a cell (two words) 17. a form of cell death that is a normal part of growth and development 18. the tissues that line the cavities and surfaces of structures throughout the body 23. a soft tissue that composes muscles 24. the stage of mitosis when chromosomes align along the center of the cell 26. a solid rod of actin protein that forms part of the cytoskeleton 28. a cell whose descendants can follow any of several developmental pathways (two words) 29. abbreviation of the things that help guide white blood cells to injured areas 30. ype of macromolecule that is the direct product of genetic information; a chain of amino acids 34. a cycle of events describing a cell’s preparation for division and division itself (two words) 36. an organelle consisting of flattened, membranous sacs, that packages secretion components (two words) 38. an organelle with ribosomes attached that is involved in the biosynthesis of proteins (three words) 39. the stage of mitosis the centromeres of replicated chromosomes part 40. the domain of single-celled microorganisms 41. a cell that does not have a nucleus or other organelles 42. an organelle consisting of a double membrane that houses enzymes with various functions 43. an organelle consisting of RNA and protein that is a scaffold for protein synthesis

Down 1. a large, membrane-bounded region of a eukaryotic cell that houses DNA 3. DNA or RNA (two words) 4. an organelle that functions in lipid synthesis, carbohydrate metabolism, and attachment of receptors on cell membrane proteins (three words) 5. the stage of mitosis when daughter cells split 6. a complex cell containing organelles and a nucleus 9. a set of proteins that a cell produces 10. a kind of tissue that supports, connects, or separates different types of tissues and organs 11. type of macromolecule that provide energy and includes sugars and starches 13. a chromosome tip 15. a series of biochemical reactions and interactions that pass information from outside a cell to inside (two words) 16. type of stem cell that can give use to every cell type 19. stage when a cell is not dividing 20. an organelle consisting of a double membrane that houses enzymes that catalyze reactions that extract energy from nutrients 21. a large domain of prokaryotic microorganisms 22. cells that can retain the potential to differentiate (two words) 25. type of organic molecule that has more carbon and hydrogen atoms than oxygen atoms. Includes fats and oils 27. a sequence of interactions among proteins that join cells (two words) 31. when groups of interacting proteins function at times in the cell cycle 32. a hollow structure built of tubulin protein that forms part of the cytoskeleton 33. a saclike organelle containing enzymes that degrade debris 35. cellular contents other than organelles 37. the first stage of mitosis when chromosomes condense