Wednesday, December 16, 2009
Wednes-Day 2
Bio 3/6- we discussed skin, which along with hair and nails, makes up the integumentary system. The skin mainly functions in regulation of body temperature and immunity/protection from pathogens and harmful substances.
We discussed the mechanism by which skin regulates body temperature via sweating as signaled by the nervous system and aided by the circulatory system.
AP Chem- we further discussed our grand chart of molecular geometry, giving examples of AX3 and AX2E molecules, the latter of which led to showing how valence bond theory accounts for "delocalized" pi bonding.
We discussed said pi bonds (double overlap of p or d orbital lobes above and below the plane of the nucleus) as well as the relatively stronger (direct orbital lobe head to head overlap in the plane of the nucleus) sigma bonds.
Check out the vids and powerpoints and note supplements on Blackboard.
# posted by C @ 5:35 PM 
