Page 105 - The Manga Guide to Biochemistry
P. 105

Well...                         Lipids               It's like
                                                        this:
               Tap           Neutral fat
                    Tap                                   There are various types
                         •	 Neutral lipid                of lipids, such as neutral

                         •	 Phospholipid                     lipids, phospholipids,
                         •	 Glycolipid                  glycolipids, and steroids.
                         •	 steroid                   Lipid is a term typically used
                                                         in biochemistry, while fat
                                                         is a word usually used in

                                                              nutritional science.

                                                     For our purposes,
                                                          the meaning is

                                                      exactly the same.
                                                        In other words,

                                                             lipid = fat.

 But normally, when      Dad        ...we mean       That's confusing,
we're talking about               neutral fat/       though, so let's
a diet and say "fat"...         neutral lipids.
                                                         just use the
                                                         word "lipid"
                                                       from now on.

Since lipid is a                                       Organic
 generic term                                        solvents?
used to refer
                                                                               One example is
    to various                                                               acetone, which is
biomolecules,                                                                often used in nail
it's difficult to                                                             polish remover.

   define, but...                                                         More specifically,
                                                                       organic solvents are
                         Lipid                                         liquids consisting of

       An important                                                     organic compounds
                                                                       with carbon atoms in
 property of lipids
                                                                           their structures.
  is that they don't
  dissolve readily                                                           Alcohol is
                                                                       another example.
      in water but
    do dissolve in                                        Biochemistry in Our Everyday Lives  91
organic solvents.*

* There are exceptions, though: some glycolipids do
   dissolve in water.
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