View
3
Download
0
Category
Preview:
Citation preview
CARBON BASED MOLECULESDAY14
PAGE 26
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)
AGENDA‣ Water stations
‣ Water properties
‣ Carbon-based molecules
‣ Summary
MORE ON WATER… (PAGE 25)
PAGE 25
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
PAGE 25
ICE EXPANDS‣When water freezes, it expands
‣ This lowers its density, allowing water to float
WATER STATIONS DEBRIEF1. Cohesion
2. Surface tension
3. High heat of vaporization
4. Universal solvent
5. Density
6. Adhesion
7. Polarity
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?
CARBON-BASED MOLECULES
PAGE 27 (CORNEL NOTES TITLE)
PAGE 27
MONOMER‣ Single molecular subunit
PAGE 27
POLYMER‣ Chain of monomers bonded together
‣ aka macromolecule
PAGE 27
MACROMOLECULES‣ Large, carbon-based molecules
‣ Carbohydrates
‣ Lipids
‣ Proteins
‣ Nucleic Acids
PAGE 27
CARBOHYDRATES‣ Monomer: monosaccharide, simple sugar
‣ Polymer: polysaccharide
‣ Simple sugars like glucose (C6H12O6) can be bonded to make polysaccharides
‣ Starches, glycogen, cellulose
PAGE 27LIPIDS‣ Nonpolar molecules
‣ Fats, oils, phospholipids, and cholesterol
‣ Source of energy (fats and oils)
‣ Used for cellular structure (phospholipid and cholesterol)
PAGE 27
PROTEINS‣Monomer: amino acids
‣ Polymer: polypeptide
‣ Perform many functions in the body
PAGE 27
NUCLEIC ACIDS‣Monomer: nucleotides
‣ Polymer: nucleic acid
‣ DNA and RNA
‣ Codes information to make proteins
ILLUSTRATIVE SUMMARY (PAGE 26)ALL CONCEPTS COVERED TODAY 4 COLORS MINIMUM
HOMEWORKTEST NEXT WEDNESDAY
Recommended