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Class Topics

Hand in W.S. 3.3 (DR/Quiz) before the bell rings. Review Notes Eukaryotic cells Cell membrane Organelles Lab – Why don’t cells grow indefinitely? “If the problem can be solved, there is no use worrying about it. If it can’t be solved, worrying about it will do no good.” Tibetan Proverb.

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Class Topics

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  1. Hand in W.S. 3.3 (DR/Quiz) before the bell rings. Review Notes Eukaryotic cells Cell membrane Organelles Lab – Why don’t cells grow indefinitely? “If the problem can be solved, there is no use worrying about it. If it can’t be solved, worrying about it will do no good.” Tibetan Proverb To learn about cells, their organelles, and apply knowledge of surface area to volume ratio Title: Biology 10/20/06 Class Topics Objectives: Friday, January 3, 20202:53 AM

  2. Class Assignments What By When • Read 62-66 10/20/06 • W.S. 3.3 (DR/Quiz) 10/20/06 • Lab – Why don’t cells grow indefinitely? 10/24/06 • Chapter 3 Quiz 2 (BIG QUIZ!) 10/26/06 • Due this class period • Due next class period • Due in the future

  3. Grade Sheet 1A – SR p. 61 - 5 pts Measurement W.S. – 10 pts 3A SR p. 42 – 6 pts 4A – SR p. 47 – 5 pts 2A – Measurement W.S. – 10 pts

  4. Functions of the cell membrane • Enclose cell • Allow transport of materials • Small polar and nonpolar • Identify the cell • Allow transport of larger materials • To receive signal molecules • To catalyze reactions

  5. Receptor Protein From: http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/CellMembranes.html http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/O/Olfaction.html

  6. Muscle cells have both receptor and transport proteins • Receiving signal molecules • Opens ion channel From: http://www.coloradocollege.edu/idprog /Neuroscience/Cellular22-44.html

  7. Chapter 3 Quiz 2 Reviewnot taken until 10/26 or 10/27 • Organelle functions (matching) • Organelle identification (labeling) • Organelles • Prokaryote, Eukaryote or both • Plant, animal or both • Cell membrane – picture identification • Multiple choice from previous notes • Prokaryotic, eukaryotic, cell membrane, membrane proteins, all cells have…

  8. Ribosomes • Site of protein synthesis • Made of RNA and protein • Found in cytoplasm and on ER Workers

  9. Ribosomes • Protein synthesis

  10. Endoplasmic Reticulum • System of channels used to move materials through a cell • Two types • Smooth ER - makes lipids • Rough ER - Used to make proteins covered with ribosomes • Sends materials throughout the cell in vesicles • Processor and transporter of proteins Conveyer belt or internal highway

  11. Endoplasmic Reticulum

  12. Lab – Why don’t cells grow indefinitely? • Working in partners • Safety • Math!!!!!

  13. Golgi Apparatus • Used to package chemicals (lipids and proteins) for export • Named after Camillo Golgi • Produces vesicles filled with protein • Packaging and distributing products Shipping department

  14. Golgi Bodies

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