1. Proteins
Mrs. Donohue

2. 1. Proteins are macromolecules which are called
Polymers
polypeptides

3. 2. A protein monomer is called an?
Amino acid
Always has an amino group!
peptide bond between carbon and nitrogen.

4. 3. What reaction makes proteins from amino acids?
Dehydration synthesis or condensation
Monomer monomer polymer H20
amino acid amino acid protein

5. 4. What reaction breaks down proteins to amino acids?
Hydrolysis
polymer amino acid amino acid
protein Monomer monomer

6. 5. Functions of Proteins A. texture of an animal’s coat-hair or fur
B. make up muscles
C. provide long-term nutrient storage
D. Circulate in the blood and defend the body from harmful microorganisms
E. control chemical reactions in a cell – Enzymes

7. 6. Functional and Dysfunctional Proteins
What needs to happen to make a protein functional?
Polypeptides must be twisted or folded and coiled into a unique form

8. 7. The protein’s shape is influenced by what?pH
Temperature
Solvent in which the protein is dissolved

9. 8. What is denaturation Protein unravels and loses its shape
Stops functioning

10. 9. What causes denaturation?
Heat unfolds proteins since there are weak forces holding clusters together
Changes in pH