Thursday, September 22, 2011

9/22/11 Scribe Post

It's been a busy week! We had our global warming discussion, Unit 1 test, science survey test, and Biology Day where wewatched "Planet Earth".
Today in class: we s
tarted Unit 2: Cells!

IMPORTANT THINGS FROM YOUR NOTES--The Basics of Organic Chemistry

-Polymer=many monomers

-Dehydration Synthesis=lin
king of monomers to form polymer
-Hydrolysis=broken down with water
-Monomer=chemical subunit that serves as a building block for polymers (the legos of organic chemistry!)

****For this unit, it is a good idea to learn how to break words apart (ex: hydro=water, lysis=breaking down)

-Every bond=2 electrons
-Carbon has 4 bonds and the ability to arrange into long skeletons
-Functional Groups are reactive and atta
ched to carbon skeletons/involved in chemical reaction
-Molecule can have 1 functional group attached or more than one
-Molecules created by bonding monomers to
-Polymers broken down into monomers
-Monosaccharide (simple sugars) formula is: C6H12O6
-Disaccharides formed by dehydration synthesis of monosaccarides
-Disaccharide formula: C12H22O11
-Polysaccharides: starch, glycogen, cellulose
-Carbohydrates are hydrophilic (water-loving)
-Lipids:Fats (triglyceride)
-Lipids are hydrophobic (water fearing). This means they don't mix with water, not that they are afraid of it!

We also briefly talked about steroids.
-Steroids are classified as lipids because they are hydrophobic.
-Anabolic Steriods=variation of testosterone
-Steroids can cause many problems, a major
problem being confusion of hormones that are necessary during development.

Ch. 2 p.28-32
Ch. 3 p.36-50
Ch. 5 p.78-79

See you all tomorrow!

Next scribe: ***Eleni***

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