Download poly=many

Macromolecules
Standard: Students know most
macromolecules in cells and
organisms are synthesized from a
small collection of simple precursors
Translation: big old molecules are made
By a bunch of little ones all hooked up
Together.
There are four main types of
macromolecules
They are:
1.Carbohydrates
2. Proteins
3. Lipids
4. Nucleic Acids (the stuff in DNA)
macromolecules are called polymers,
poly=many, so macromolecules have many
molecules.
made of smaller sub-units called monomers,
Mono=one,
Many monomers combined=polymers
Lets start with Carbohydrates, also known
As polysaccharides, saccharide means sugar,
poly means many.
So polysaccharides means many sugars, and
monosaccharide means one sugar.
(but wait, we know that a carb is a bunch
of sugar molecules hooked up together.)
-Carbohydrates are important for helping the
body produce and store energy
Mono or di saccharide?????????????
Mono or di saccharide?????????????
Mono or di or poly saccharide or Carbohydrate????
Here’s an example of some yummy
Carbohydrates
Good carbs
vs
Bad carbs
The next type of macromolecule I would like
to discuss is Protein
-Proteins are found everywhere, inside cells,
in membranes, outside of cells, and play
many roles for organisms
-Proteins act as enzymes to catalyze
chemical reactions, they also help with
transport, and structure, and the immune
system
-Proteins are polymers made up of smaller
monomers called amino acids.
-There are literally millions of different
types of proteins but there are only 20
different amino acids.
-It is the different combination of amino
acids that makes the proteins unique.
http://spice.duit.uwa.edu.au/sample
s/ast0807/
What are these guys?????????
Example of a type of Protein, when this
is cooked it tastes real good!
Next lets discuss Lipids also known as Fats
-Lipids are very diverse
-Some lipids help to form our cell membranes
-Some lipids are used as energy storage
-all lipids are “hydrophobic” which means that
they dislike water. (Like the oily coating on
birds feathers)
-Some lipids help to bind cholesterol in your
body
-The monomer of a lipid is called a fatty acid
Here is an example of a lipid:
The last type of macromolecule I would like
to discuss are nucleic acids
-These polymers are what make up your
DNA and RNA
-The monomers of nucleic acids are called
Nucleotides
-Nucleic acids are responsible for storing
your genetic information and also provide
us with a partial look into the history of
Life.
Here is an example of a nucleic acid: