Lec-20-Chap-09-4P

Lec-20-Chap-09-4P - Lecture 20, Knowledge and Skills...

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1 Lecture 20 Intermolecular Forces II (9.6) Hydrogen Bonds Biomolecules (9.7) Lecture 20, Knowledge and Skills • Structure and nature of hydrogen bonds • Boiling point anomalies of HF, H 2 O, and NH 3 • Structure of water • Structure of ice • Interaction of water with polar groups • Hydrophobic effect • Understand the basic structure of phospholipids • Structure of membranes • Structure of proteins • Structure of DNA Hydrogen Bond ± ± ± + Comparison of Some Physical Properties of Ethanol & Dimethyl Ether Boiling Points of Binary Hydrides Hydrogen Bonding in Water, Ammonia, and Hydrogen Fluoride
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2 Structure of Ice Interactions of Water with Polar Groups (Solvent Properties of Water) H O H O H H O H H H H O H H Cation or positive end of a dipole H O H H O H H H H O H H O H H O H H O H Anion or negative end of a dipole Hydrophobic Effect H H O H H O H H O H H H H O H H O H H Water Air or Oil Phospholipids phospholipids – glycerol derivatives with two fatty acid
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Lec-20-Chap-09-4P - Lecture 20, Knowledge and Skills...

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