The Cell System

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Across
  1. 3. a job or task
  2. 5. the basic unit of structure and function in living things
  3. 6. how something is made up
  4. 11. sequence of events in which the cell grows, prepares for division and forms two new daughter cells
  5. 12. a widely accepted explanation of the relationship between cells and living things
  6. 13. a tiny cell structure that carries out a specific function within the cell
  7. 15. keep something in an existing state
  8. 16. fills the region between the cell membrane and the nucleus, made mostly of water and some salt
  9. 17. process by which molecules move from an area of higher concentration to an area of lower concentration
  10. 18. making an image larger
  11. 19. allowing large particles to leave a cell
  12. 22. means some substances can cross the membrane, while others cannot
Down
  1. 1. cell making a copy of its DNA
  2. 2. a sac-like storage organelle
  3. 4. large oval organelle that contains the cell's genetic material
  4. 5. an organelle in the cell of plants that captures energy from the sun
  5. 7. making an image clearer
  6. 8. a thin, flexible barrier that surrounds a cell and controls which substances pass into and out of a cell
  7. 9. an instrument that makes small objects look larger
  8. 10. rigid supporting layer that surrounds the cells of plants and some other organisms
  9. 14. to point out the difference
  10. 19. when something is taken in the cell membrane by changing shape and engulfing the large particle
  11. 20. diffusion of water molecules across a selectively permeable membrane
  12. 21. converts energy stored in food to energy the cell can use