CELLS

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Across
  1. 1. Different organs work together to form this.
  2. 4. Information is passed from parents to children through ______.
  3. 5. The basic units of life
  4. 7. Calcium and ______ help to keep our bones strong and healthy.
  5. 9. Contains water and food materials in a cell.
  6. 11. Red blood cells transport this around the body.
  7. 12. A device needed to observe small living things
  8. 15. Red blood cells do not contain this.
  9. 16. Where a microscope slide is placed in a microscope
  10. 18. These cells contain calcium and phosphate.
  11. 19. The cell membrane ______ substances entering and leaving the cell.
  12. 20. The layer surrounding a cell
Down
  1. 2. Blood is a _____ made up of different cells.
  2. 3. This cell does not contain a nucleus.
  3. 6. The nucleus contains these.
  4. 8. Various tissues work together to form this.
  5. 10. Muscle cells help the body to _____.
  6. 12. These cells can contract and relax.
  7. 13. Bone cells help to _________ our body.
  8. 14. The part of the cell that controls all cell activities.
  9. 17. Many cells make up a _______.