BIO TEST PRACTICE

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Across
  1. 2. semi permeable membrane. High concentration to low concentration
  2. 4. packages materials to be transported around the cell
  3. 5. checks cell size to see and environment must be suitable
  4. 8. Uncontrollable cell divison taking up space tumor reducing the effectiveness of the surrounding tissue
  5. 11. genetic info and control centre
  6. 12. the ‘mini organs’ All cells have to perform the same functions Store energy
  7. 13. specialized structures in the body that perform specific life processes (functions)
  8. 14. Site for lipid synthesis
  9. 15. fibres pairs, cylindrical tubes
  10. 16. Cells dying to external factors, toxins, infections, trauma
Down
  1. 1. catlyze protein synthesis
  2. 3. cellular respiration, double membrane, glucose + o2 = water, energy, converting energy into food, active cells
  3. 5. Rapid growth, organelles are produced
  4. 6. The controlled death of old cells eg white blood cells
  5. 7. where ribosomes are made
  6. 9. ribosomes attached (NUclear envolope)
  7. 10. DNA is duplicated
  8. 12. are specialized structures inside the cell (e.g. mini-organs) Organelles perform specific cell processes needed for a cell to live