CELLS

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Across
  1. 2. a tiny cell wall structure that carries out a specific function within the cell.
  2. 4. the control center of a eukaryotic cell that directs the cell's activities and contains DNA.
  3. 6. the process in which some organisms use water along with sunlight and carbon dioxide to make their own food.
  4. 10. the process by which molecules move from an area of higher concentration to an area of lower concentration.
Down
  1. 1. the basic unit of structure and function in living things.
  2. 3. process by which a cell takes in a substance by surrounding it with the cell membrane.
  3. 5. the process by which cells break down simple food molecules to release energy without using oxygen.
  4. 7. the maintenance of stable internal conditions in an organism.
  5. 8. the diffusion of water molecules through a selectively permeable membrane.
  6. 9. process by which vesicles release their contents outside the cell.