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The Cell

The Cell . Part 2. Ribosome. Cisterna. Ribosomes Polyribosome m-RNA. Translocation proteins. Intracellular proteins. Eosome and Neosome 33 Proteins 1 rRna (1900) 49 Proteins 3 rRNA (120,160,4700). Ribosome. A Site Aminoacyl-tRNA binding site. P Site

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The Cell

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  1. The Cell Part 2

  2. Ribosome • Cisterna. • Ribosomes • Polyribosome • m-RNA. • Translocation proteins. • Intracellular proteins • Eosome and Neosome • 33 Proteins 1 rRna (1900) • 49 Proteins 3 rRNA (120,160,4700)

  3. Ribosome • A Site • Aminoacyl-tRNA binding site • P Site • Peptidyl-tRNA binding site

  4. Ribosome

  5. Golgi Apparatus • Parallel, semicircular canals • Budding at edges • Mature Face • Transporting vesicles • Transferring vesicles • Secretory vesicles

  6. Golgi Apparatus Each cisternal level has a unique function and transfer from level to level is by forming transferring vesicles. Constuitive Secretory Pathway

  7. Golgi Apparatus

  8. Internal & Export Protein

  9. Cytoskeleton • Microtubles • Tubulin a & b • functions • cell movements • intracellular transport • Structural framework • Cell shape • Microfilaments

  10. Cilia, Flagella, Basal Bodies • Cilia - 9 sets of doublets and a central doublet • Flagella - 9 sets of doublets and 9 sets of external fibers and a central doublet • Basal body - 9 sets of triplets • Centriole - 9 sets of tripets with 2 centrioles to a pair

  11. Centriole • Centriolar structure • Centriolar DNA • Centrosome • Mitotic Spindle

  12. Cilia • Cilia covered by a plasma membrane • Basal body - Kinetochore - contains DNA • Cilia move fluids/particles over cell surface

  13. \

  14. Ciliary Movements • Powerstroke - oar like • Recovery stroke - limp

  15. Nucleus and Nucleolus • Nucleoplasm • Chromatin • Nucleolus • Nuclear membrane • Nuclear pores • Chromosomes

  16. Nuclear Pores • Nuclear pores allow the passage of materials between the cytosol and nucleoplasm

  17. Nuclear Pores

  18. Vaults • 8 leaves of protein • Closed barrel • May sit in nuclear pore • Carries m-RNA’s • Volume same as ribosomal subunits

  19. Chromatin-Chromosomes • DNA/Proteins and Chromatin • Chromatids and Chromosomes • Centromere

  20. Prokaryote-Eukaryote • The evolution of membrane systems

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