Did you know?
Catalyst
Rank the following foods, with the food you think is healthiest as number 1
and the unhealthiest as number 8.

Whole wheat bread

Crunchy Peanut Butter

Orange Juice

Cheetos

Bagel

Turkey breast

Soy beans

Chocolate chip cookie
___ Whole wheat bread
___ Crunchy Peanut Butter
___ Orange Juice
___ Cheetos
___ Bagel
___ Turkey breast
___ Soy beans
___ Chocolate chip cookie
Are we what we eat?
Macromolecules
monomer – monomer – monomer
polymer/macromolecule

Monomers: Molecules that link to make
macromolecules/polymers.

Macromolecule: A big, biological molecule
Macromolecules
Class
Polymer/Macromolecule
Monomer
Carbohydrates
Carbohydrate / Polysaccharide
Monosaccharide
Lipids
Lipid
Glycerol Molecule + Fatty Acid Tails
Proteins
Protein / Polypeptide
Amino Acids
Nucleic Acids
Nucleic Acid
Nucleotides
Carbohydrates

Macromolecule/Polymer: Carbohydrate / Polysaccharide

Monomer: Monosaccharide
Monosaccharide
Carbohydrate / Polysaccharide

Function: Store short term energy

Food Sources: Sugar (simple carbs), Grains (complex carbs
SIMPLE VS. COMPLEX CARBS
SIMPLE CARBS
COMPLEX CARBS

Simple carbs are easily and quickly digested
(sugar rush)

Complex carbs take longer to digest but still
provide short term energy

Also known as simple sugar

Also known as starch

Get their name because they are made up
of only one or two sugars

Get their name because they are made up
three or more sugars

Examples: table sugar, soda, candy

Examples: bread, pasta, grain
Carb-Loading
Lipids

Macromolecule/Polymer: Lipid

Monomer: Glycerol Molecule + Fatty Acid Tails
Zoom-In
Lipid

Function: Store long term energy, cushioning

Food Sources: Oils, Fats
Glycerol Molecule
Polar / Hydrophilic
(Loves Water)
Fatty Acid Tails (Any #)
Nonpolar / Hydrophobic
(Hates Water)
Your fat looks like this…
Proteins

Macromolecule/Polymer: Protein / Polypeptide

Monomer: Amino Acids (20 different kinds)
Zoom-In
H
Protein
Cys
Leu
Ser
Phe Leu
H2N
C
R
COOH
Side chain changes
for each of the 20
amino acids.

Function: Enzymes, Hormones, Structural Support, Cell Communication, Builds muscle

Food Sources: Meat, Eggs, Beans, Soy, Milk
Make your own protein shake!

http://www.youtube.com/watch?v=zZuGs7LML-Q
Nucleic Acids

Macromolecule/Polymer: Nucleic Acid

Monomer: Nucleotides
Zoom-In
P
P
Nucleic Acid
P

Function: store and transmit genetic information

Types: DNA, RNA and ATP
Nucleotide
P
Key
= Phosphate Group
= Sugar
= Nitrogenous Base
Your Task

Your group has 10 minutes to present the facts of your assigned macromolecule in a creative
way.

You will receive a grade on the quality of your presentation


Is the information accurate?

Is the information complete?

Does everyone in the group have equal participation?

Is your choice of presentation method creative and engaging?
Examples of possibilities:

Skit

Poem

Song
An Example…

https://www.youtube.com/watch?v=nt9u7CfVoc4