1. Pop Quiz! No Talking- If you talk, it’s an automatic ZERO

2. What are the four organic macromolecules that you are made of?
State one function of carbohydrates.
State one function of lipids.
Name the process by which polymers such as polysaccharides are formed or synthesized?
What makes a compound organic?

3. Elements and macromolecules packet
Complete Lipids section

5. PROTEINS

6. ELEMENTS FOUND IN PROTEINS
CARBON (C)
HYDROGEN (H)
OXYGEN (O)
NITROGEN (N)
How is this different from carbohydrates and lipids? Carbs and lipids don’t have nitrogen in them

7. Structure of Proteins They are chains of amino acids
Proteins are polymers
the monomer = amino acid
There are 20 different
All the proteins of
all organisms are
made of the same
20 amino acids

8. There are thousands of different proteins
There are more than a million known species on Earth
There are tens to hundreds of millions of individuals belonging to each species
Each of those individuals has unique proteins
How can there be so many different proteins if there are only 20 amino acids?
The sequence of the amino acids can be arranged and rearranged in an almost infinite number of ways

9. These are proteins Enzymes
We will focus on the structure and function of these proteins in this unit
Pigments
Antibodies
we will examine these proteins later in the year
Most hormones
Transport proteins

10. Major functions of proteins
Growth and repair of tissues
Transport
Enzymatic catalysts
Buffers
Energy

11. Basic structure of an amino acid
Take out your colors! Lets draw the basic structure of an amino acid!!! 

12. Amino acids
The basic amino acid form has a carboxyl group on one end and an amino group on the other end.
All amino acids also have an R group
AN R GROUP IS ANY GROUP OF ATOMS – THIS CHANGES THE PROPERTIES OF THE PROTEIN!

13. Tonight’s Homework: Proteins Review Worksheet
DO NOW
Answer the following Questions:
Why are proteins Important?
What are some examples of proteins?
What is the monomer/basic unit of a protein?
Tonight’s Homework: Proteins Review Worksheet

14. More vocab!!!! Yeah! I love science vocab! Give me more!
Essential amino acid—
an amino acid that
animals cannot make
so they must obtain
them from food
Polypeptide—
a chain of amino acids
Peptide bond—
a special name for the bond that holds amino acids together

15. Dipeptide formed from two amino acid subunits
Formed by the process of Dehydration Synthesis
Write a word equation for the dehydration synthesis of a dipeptide
amino acid + amino acid dipeptide + water

16. Hydrolysis of a dipeptide
Breaking down of a dipeptide into amino acids
Write a word equation for the hydrolysis of a dipeptide
dipeptide + H2O ---> amino acid + amino acid

17. Polypeptide (protein)
composed of three or more amino acids linked by synthesis reactions
Examples of proteins include insulin, hemoglobin, and enzymes.