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  • 1. RIBOSOMES Lorena Latre Navarro 2º BTO A IES Lucas Mallada
  • 2. RIBOSOMES INTRODUCTION
      Discovered by George Emil Palade (1953)
    Ribosome
  • 3. WHERE? We can found ribosomes in the mitochondrial matrix too. Rough endoplasmic reticulum
  • 4. PROKARYOTIC CELL EUKARYOTIC CELL
  • 5. COMPOSITION
      Ribosomal RNA + fifty or more structural proteins = RIBOSOME
  • 6.  
  • 7. STRUCTURE
    • Without MEMBRANE
    • 8. Two SUBUNITS
    • 9. Large subunit
    • 10. Small subunit
  • 11.  
  • 12. Sedimentation's coefficent Ribosomal RNA Eukaryotic Prokaryotic Eukaryotic Prokaryotic LARGE SUBUNIT 60 S 50 S 32 S 28 S SMALL SUBUNIT 40 S 30 S 18 S 16 S SUBUNITS
  • 13. FUNCTION
      PROTEIN BYOSINTHESIS
    • Transcription -> mRNA
    • 14. tRNA's nucleobases join to mRNA's nucleobases
    • 15. Translation by the ribosomes
  • 16. http://www.youtube.com/watch?v=Ikq9AcBcohA PROTEIN BIOSYNTHESIS
  • 17. POLYSOMES
  • 18. URLography
    • http://benchmarks.rockefeller.edu/index.php?id=90
    • 19. http://nurlatifahch.blogspot.com/2011_07_01_archive.html
    • 20. http://serc.carleton.edu/microbelife/research_methods/genomics/translat.html
    • 21. http://classes.midlandstech.edu/carterp/Courses/bio101/labquiz2/ss2.htm
    • 22. http://www.tutorvista.com/content/biology/biology-iii/cell-organization/nonmembranous-cell-organelles.php
    • 23. http://cousasdebioloxia.blogspot.com/2011/03/formacion-dos-ribosomas.html
    • 24. http://encyclopedia2.thefreedictionary.com/Mitochondria
    • 25. http://www.biology4kids.com/files/cell_ribos.html
    • 26. http://bass.bio.uci.edu/~hudel/bs99a/lecture22/index.html
    • 27. http://labs.genomics.sinica.edu.tw/chwong/RNA%20as%20a%20Drug%20Target.htm
    • 28. http://www.nap.edu/openbook.php?record_id=1859&page=98