MOL CLASS 12 - Molecules to Cells - Part 2 (class notes S11)

MOL CLASS 12 - Molecules to Cells - Part 2 (class notes...

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1 NATURAL SCIENCE II: MOLECULES OF LIFE Spring 2011 Class 12 – Wednesday, March 9 From Molecules to Cells (Part 2) Reading: Chapter 8, pp. 23 – 42 + two articles Next class: Chapter 14 , pp. 1 – 15 (DNA) OUTLINE (1) (2) A prokaryotic cell (3) Macromolecular complexes (4) Killing bacteria with antibiotics (5) The problem of antibiotic resistance (6) A eukaryotic cell and its organelles
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2 ANNOUNCEMENTS
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3 REVIEW
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4 A PROKARYOTIC CELL
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5 MACROMOLECULAR COMPLEXES
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6 KILLING BACTERIA WITH ANTIBIOTICS The word antibiotic ” means “ anti-life .” So how does an antibiotic kill bacteria selectively without killing our own cells?
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7 MAKING THE BACTERIAL CELL WALL
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WHAT IS PENICILLIN? 8 Alexander Fleming - 1928 molecular structure of penicillin G
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9 HOW DO PENICILLINS WORK?
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Unformatted text preview: methicillin-resistant Staphylococcus aureus (MRSA) 10 THE PROBLEM OF ANTIBIOTIC RESISTANCE multiple drug-resistant tuberculosis (MDR-TB) and extreme drug-resistant tuberculosis (XDR-TB) 11 Christopher T. Walsh and Michael A. Fischbach, New Ways to Squash Superbugs Scientific American July 2009 12 Christopher T. Walsh and Michael A. Fischbach, New Ways to Squash Superbugs Scientific American July 2009 13 WHERE WILL NEW ANTIBIOTICS COME FROM? 14 A EUKARYOTIC CELL 15 CELL NUCLEUS 16 RIBOSOME ENDOPLASMIC RETICULUM 17 MITOCHONDRION 18 THE CELL MEMBRANE (1) phospholipid bilayer 19 THE CELL MEMBRANE (2) fluid mosaic model 20 CROSSING THE CELL MEMBRANE...
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MOL CLASS 12 - Molecules to Cells - Part 2 (class notes...

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