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Biology AP

rename
Updated 2007-06-10 13:33

Chemical Background

Functional Groups

R stands for "rest of the compound"
NameStructure
Amino group         H
R-N<
         H
Carbonyl GroupsIncludes Ketones and Aldehydes
KetoneR
|
C=O (in the middle of a chain)
|
R
AldehydeR-C=O
      \
       H
Carboxyl GroupR-C=O
      \
       OH
Hydroxyl GroupR-OH (aka alcohols)
Sulfhydryl GroupR-SH
Phosphate Group   O
    |
O=P-O-R
    |
   O
memorize

Lipids

Question Answer
Lipids in GeneralHydrophobic and insoluble in water; includes fats, oils, steroids, and phospholipids
Fat in GeneralEnergy storage; three fatty acids connected to OH group of a glycerol
Saturated FatNo double bonds, "animal fat," associated with heart disease
Unsaturated Fatone or more double bonds, fewer H molecules, "plant fat"
memorize

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