We went over the handouts which included the following concepts today
BONDS in biology
1. Ionic bond
2. covalent
a. polar covalent - example: a water molecule
b. nonpolar covalent - example - a hydrocarbon chain
c. We learned that water forms polar covalent bonds
3. Functional groups like
a. carboxyl
b. amino
c. sulfhydryl
d. ketone
e. phosphate
f. aldehyde
g. hydroxyl
We looked at FAT facts:
FAT is NONPOLAR and HYDROPHOBIC
There are 5 functions of fats:
1. Energy stores
2. Insulation under the skin
3. fat packing for organs
4. part of the phospholipid bilayer in a cell membrane
5. steroid hormones such as ESTROGEN and TESTOSTERONE
FATTY ACIDS are composed of a carboxyl group attached to a hydrocarbon chain. They can be SATURATED or UNSATURATED.
UNSATURATED fats have DOUBLE BONDS which are either CIS or TRANS
When you add 3 fatty acids to a glycerol, you can make a TRIGYLCERIDE using dehydration synthesis
