day14 carbon based molecules - weebly...day14_carbon based molecules author: wai created date:...
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CARBON BASED MOLECULESDAY14
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DO NOW‣ How does water’s polarity explain its
properties?
‣ How does hydrogen bonding explain water’s properties?
‣ (You have 10 min to finish the stations)
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AGENDA‣ Water stations
‣ Water properties
‣ Carbon-based molecules
‣ Summary
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MORE ON WATER… (PAGE 25)
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HIGH HEAT OF VAPORIZATION ‣ Due to its high specific heat, water must
absorb A LOT of energy before it can evaporate
‣ i.e. evaporative cooling
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ICE EXPANDS‣When water freezes, it expands
‣ This lowers its density, allowing water to float
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WATER STATIONS DEBRIEF1. Cohesion
2. Surface tension
3. High heat of vaporization
4. Universal solvent
5. Density
6. Adhesion
7. Polarity
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SUMMARY Write a paragraph addressing the following:
‣ What are 3 things you discovered about water?
‣ How do the characteristics of water help the body?
‣ Why do you think people become serious ill, or die, if they go without liquid for a week or so?
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CARBON-BASED MOLECULES
PAGE 27 (CORNEL NOTES TITLE)
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MONOMER‣ Single molecular subunit
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POLYMER‣ Chain of monomers bonded together
‣ aka macromolecule
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MACROMOLECULES‣ Large, carbon-based molecules
‣ Carbohydrates
‣ Lipids
‣ Proteins
‣ Nucleic Acids
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CARBOHYDRATES‣ Monomer: monosaccharide, simple sugar
‣ Polymer: polysaccharide
‣ Simple sugars like glucose (C6H12O6) can be bonded to make polysaccharides
‣ Starches, glycogen, cellulose
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PAGE 27LIPIDS‣ Nonpolar molecules
‣ Fats, oils, phospholipids, and cholesterol
‣ Source of energy (fats and oils)
‣ Used for cellular structure (phospholipid and cholesterol)
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PROTEINS‣Monomer: amino acids
‣ Polymer: polypeptide
‣ Perform many functions in the body
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NUCLEIC ACIDS‣Monomer: nucleotides
‣ Polymer: nucleic acid
‣ DNA and RNA
‣ Codes information to make proteins
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ILLUSTRATIVE SUMMARY (PAGE 26)ALL CONCEPTS COVERED TODAY 4 COLORS MINIMUM
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HOMEWORKTEST NEXT WEDNESDAY