Cells

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Across
  1. 2. system group of organs that work together to perform a major function
  2. 3. single-celled organism
  3. 6. condition of things appearing larger than they are
  4. 9. produce ribosomes
  5. 10. made of many cells
  6. 13. organelle with a network of membranes that produces many substances
  7. 16. focuses light through lenses to produce a magnified image
  8. 18. fills the region between the cell membrane and the nucleus
  9. 19. genetic material
  10. 20. formed when two or more elements combine chemically
  11. 23. group of similar cells that work together to perform a specific function
  12. 25. large organic molecules made of carbon, hydrogen, nitrogen, and sulfur
  13. 27. membrane controls which substances pass into and out of a cell
  14. 29. tine cell structures that carry out specific functions
  15. 30. break down large food particles into smaller ones; breakdown old cell parts
  16. 32. acid contains instructions that cells need to carry all the functions of life
  17. 34. the degree to which two separate structures that are close together can be distinguished
  18. 35. theory widely accepted explanation of the relationship between cells and living things
  19. 37. wall a rigid layer that surrounds the cells of plants and some other organisms
  20. 39. coverts energy stored in food to energy the cell can use to live and function
  21. 40. cell membrane changes shape and engulfs the particle
Down
  1. 1. stores water, food, or other materials needed by the cell
  2. 4. allows large particles to leave a cell
  3. 5. produce protein
  4. 7. receives proteins, packages them, and distributes them to other parts of the cell
  5. 8. any substance that cannot not be broken down into simpler substance
  6. 11. transport movement of materials across a cell membrane using cellular energy
  7. 12. substances can cross the membrane while others cannot
  8. 14. thin strands of material that fills the nucleus
  9. 15. cell's control center, directing all of the cell's activities
  10. 17. cells perform specific functions that benefit the entire organism
  11. 21. made of different kinds of tissues that function together ex brain
  12. 22. transport movement of dissolved materials across a cell membrane without using the cell's energy
  13. 24. captures energy from the sun and changes it to a form of energy cells can use in making food
  14. 26. diffusion of water molecules across a semipermeable membrane
  15. 27. basic units of structure and function in living things.
  16. 28. compounds that are made mostly of carbon and hydrogen and some oxygen
  17. 31. energy-rich organic compounds made of the elements carbon, hydrogen, and oxygen
  18. 33. shape of DNA molecule
  19. 36. process by which molecules move from an area of higher concentration to an area of lower concentration
  20. 38. speed up chemical reactions in living things