Across
- 2. Cell structure that forms a maze of passageways in which proteins and other materials are carried from one part of the cell to another
- 7. Unwinds the double helix
- 9. A solution in which the concentration of solutes is less than that of the cell
- 11. Final stage of cell division, in between anaphase and interface. Chromatids move to opposite ends of the cell and two nuclei are formed
- 16. Process by which a cell divides into two new daughter cells
- 17. Part of cell division where chromosomes become visible, the nuclear envelop dissolves, and spindles form
- 18. Mass of rapidly dividing cells that can damage surrounding tissue
- 21. Substance found in eukaryotic chromosomes that consists of DNA tighly coiled around histones
- 22. Region of chromosomes where two sister chromatids attatch
- 23. Makes protein through protein synthesis
- 24. A single cell that develops into a multi-celled organism
- 25. Type of reproduction where two parents combine their genetic material to produce a new organism, which differs from both parents
- 26. unspecialized cells that retain the ability to become a wide variety of specialized cells
- 27. Organism containing a nucleus & other organelles that are bound by membranes
- 29. Part of the cell containing DNA & RNA and is responsible for growth and production
- 33. Rigid layer of nonliving material that surrounds the plant cells
- 36. Process requiring energy that moves materials across a cell membrane against a concentration difference
- 38. Hairlike projections that extend from the plasma membrane and are used for locomotion
- 41. Found inside the nucleus, produces ribosomes
- 42. Process in which the cells become specialized in structure & function
- 43. Diffusion of water through a selective permeable membrane
- 45. Enzyme involved in DNA replication that joins induvidual nucleotides to produce a DNA molecules
- 46. Programmed cell death
- 47. Type of reproduction where a single parent reproduces by itself
- 48. Process by which organisms maintain a relatively stable internal environment
Down
- 1. Final binding of nicks in DNA during synthesis and repair
- 3. an organisms entire "genetic package"
- 4. Power house of the cell and the site of ATP production
- 5. The regular sequence of growth & division that cells undergo
- 6. Chromosomes line up in the middle of the cell
- 8. Phase of mitosis where the chromosomes separate and move to opposite ends of the cell
- 10. Thread like structures made of DNA molecules that contain the genes (often represented by X)
- 12. A unicellular organism that lacks a nucleus & membrane-bound organelles
- 13. Family of proteins that regulate the cell cycle of eukaryotic cells
- 14. Cell organelle that stores materials such as water, salts, proteins, and carbohydrates
- 15. Organelle containing digesting enzymes
- 19. movement of specific molecules through protein channels from low to high concentration (with the gradient)
- 20. A double layer if phospholipids that make up plasma and organelle membranes
- 21. The basic unit of structure & function in living things
- 22. A network of fibers that holds the cell together, helps the cell to keep its shape, and aids in movement
- 28. Plant & Algae organelle where photosynthesis occurs
- 30. A solution in which the concentration of solutes is higher than that of the cell
- 31. Any malignant growth or tumor caused by abnormal and uncontrolled cell division
- 32. A long, whiplike structure that helps a cell move
- 34. Animal cell organelle that aids in cell division
- 35. Requires no energy, movement of molecules from low to high concentration (moves with the gradient)
- 37. Specialized structure that performs important cellular functions within a eukaryotic cell
- 39. System of membranes that modifies & packages proteins for export by cell
- 40. a solution in which the concentration of solutes is essentially equal to that of the cell which resides in the solution
- 44. All living things are made of cell; cells are the basic unit of structure & function in living things; new cells are produced from living cells