Cells

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Across
  1. 4. an organic compound made up of a phosphorous atom surrounded by three oxygen atoms
  2. 5. a jellylike material in most cells that surrounds the nucleus
  3. 8. able to allow some fluids and particles to pass through, but not others
  4. 10. The Basic units of all living things
  5. 14. round or rod-shaped structures in a cell in which food molecules are broken down to produce energy
  6. 15. the movement of molecules across a cell membrane without the use of energy by the cell
  7. 18. organelles within the nucleus where ribosomal RNA is produced
  8. 19. a series of flattened sacs within a cell where materials are modified and distributed to other parts of the cell
  9. 20. movement of water across a semipermeable membrane from a high concentration to a low concentration
  10. 21. second phase of photosynthesis, during which light is not needed
  11. 22. movement of materials through a cell membrane using energy
  12. 25. unable to be penetrated
  13. 28. the process of taking in oxygen and releasing carbon dioxide
  14. 29. the part of the cell that controls many of the functions of the cell and contains the organism's DNA
  15. 30. carbohydrates woven together to make up the cell wall in plants, algae, and fungi
Down
  1. 1. the movement of molecules from an area of higher concentration to an area of lower concentration
  2. 2. small structures inside the cell that have specialized functions
  3. 3. the membrane that surrounds the nucleus
  4. 4. a process in which plants and some other organisms use energy from the sun to convert water and carbon dioxide to food
  5. 6. a thin, flexible sheet or layer
  6. 7. Storage chambers in cells that are used to hold nutrients and wastes
  7. 9. the part of the plant where photosynthesis is carried out
  8. 11. the stage of photosynthesis that is driven by energy from the sun
  9. 12. a network of folded membranes within the cell that manufactures and stores many chemicals
  10. 13. the movement of fluids and nutrients around an organism's body
  11. 16. a compound found in living cells, that can store and release energy
  12. 17. tiny structures that make proteins for the cells
  13. 23. a plant substance, usually green, that absorbs light energy for use in photosynthesis
  14. 24. able to allow fluids and particles to pass through
  15. 26. enzyme-containing cell parts that help digest food and break down old cell parts
  16. 27. a rigid barrier that surrounds the cells of organisms such as plants, algae, and fungi