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Across 1. The movement of a substance across a cell membrane without the input of the cells energy. (2 words) 7. the membranes are made mostly of ______________ 8. cell membranes are________________________. 11. A type of lipid made from glycerol, two fatty acids, and a phosphate group. 12. The opposite is flagella 13. A membrane that lets certain molecules pass through and prevents other molecules from crossing. 15. distributes some molecules to the cell membrane for secretion. (2 words) 18. When particles are being moved from areas of low concentration to areas of high concentration then specific carrier proteins in the membrane are required to move these particles. (2 words) 20. Contains most of the cell’s genetic material. 21. Cellular energy used to move substance across a cell membrane. (2 words) 25. the concentration of solutes outside is higher than it is inside the cell. 26. Structures that enable the plant to make sugars through photosynthesis. 27. Similar to a factory generator that changes mechanical energy into electrical energy. 29. The basic units of all life, all organisms are made of one or more cells, and all cells arise from existing cells. (2 words) 30. absorbs water, or they may store proteins, ions, and the waste products of metabolism 31. enables oxygen and carbon dioxide to cross cell membranes. 32. Organelles that make the proteins needed by cells. 34. The concentration of solutes outside is lower than it is inside he cell 35. Wastes and cell products are packaged by the Golgi apparatus in sacs called Golgi Vesicles. 36. The random movement of molecules from an area of higher concentration to an area of lower concentration. 37. A cells genetic info that is kept in distinct structures. 40. divided into two domains the bacteria and the archaea. 41. cells that are primarily involved in protein synthesis have rather large nucleoli and many ribosomes. 43. what is the material between the cell membrane and the nucleus? 44. surrounded by a double membrane called a nuclear envelope. 46. A portion of cell membrane surrounds desirable macromolecules that are outside the cell. 47. The diffusion of water across a semipermeable membrane. 48. Organisms whose cells have a nucleus surrounded by a nuclear membrane. 49. Long, tail-like projections. 50. cells like fungi, algae, adn bacteria have ___________ (2 words) 51. The opposite is Cilia. 52. occurs when the concentrations of solutes in the solutions on the two sides of a semipermable membrane are different.

Down 2. two types rough and smooth (2 words) 3. moving biochemicals and atomic or molecular substances across the cell membrane. (2 words) 4. A series of flat, membrane-bound sacs where molecules are sorted, often modified, packaged, and distributed to the destination. (2 words) 5. groups of this function like an assembly line, helping to make proteins from amino acids. 6. A thin layer of lipid and protein that separates the cells contents from the environment. (2 words) 9. this cell has burst due to the large amount of water entering it. (2 words) 10. A network of protein fibers and tubes extending throughout the cytoplasm. 12. Short, hairlike projections that usually occur in large numbers on the surface of certain cells. 14. typically much larger than prokaryotes. 16. 5 to 10 nm thick. (2 words) 17. Organelles called ribosomes that are formed in the ______________. 19. The energy stored in food compounds into a form useful for the cell. 20. the network give the cell support and helps it to maintain or change its shape. 22. A membrane-bound compartment that serves many functions. 23. the golgi vesicles then fuse with the cell membrane and the materials in the vesicles are secreted out of the cell. 24. The concentration of solutes outside the cell is equal to thatinside the cell 26. human body has 46 _____________ 28. Animal cells do not have ______________ and cannot mak etheir own food. 32. Organisms whose cells have no definite nucleus. 33. A semi fluid substance made primarily of water and organic compounds. 35. the cell piches off a saclike porrtion of its outermembrane to form a tiny new vesicle 38. Contains digestive enzymes that help break down large molecules. 39. emphasizes that all organisms are composed of cells, the fundamental units of life. (2 words) 42. An extensive network of membranes that produces materials for the cell. 43. A tough, rigid outer covering that protects a plant cell. (2 words) 45. Digests old organelles that are no longer useful to the cell.