Organelle crossword

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Across
  1. 2. contains enzymes for breaking down cellular waste materials
  2. 4. surface that is not smooth
  3. 6. provides structure and supports for cell shapes
  4. 8. control centre of a cell
  5. 9. membrane controls entry and exit of substances in cells
Down
  1. 1. proteins that form chromosomes in cells
  2. 3. wall provides structure and protection to plant cells
  3. 4. synthesise proteins by translating messenger RNA sequences
  4. 5. body packages proteins for cell transport
  5. 7. produces ribosomes within the nucleus cells