Cells

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Across
  1. 3. Most substances require the assistance of specific to transport them across the membrane.
  2. 4. is made up of phospholipids and proteins
  3. 6. The nuclear membrane has openings
  4. 8. Each centriole is made up of small tubular bodies
  5. 9. are very long threads in the nucleoplasm
  6. 10. Small granules found in the cytoplasm of all cells.
  7. 12. All living organisms are made up of it
  8. 13. The existence of lysosomes was subtly suggested for the first time in the early 1950s
  9. 14. have a head and a tail
  10. 15. material Surrounding the complex is a mesh of various proteins
Down
  1. 1. The gel-like substance within the cell membrane
  2. 2. are folds which increase the surface area on which reactions can take place
  3. 4. Occurs near the nucleus
  4. 5. is a liquid that fills the nucleus
  5. 7. distributes things and has folds
  6. 11. are often referred to as the powerhouses of the cells