1. PROTEINS

2. Proteins
Proteins = Polypeptides
Production: in the ribosomes through the process of protein synthesis

3. Proteins Elements: C, H, O, N
Monomer: amino acids (20 total) (assembled together based on DNA instructions and connected by a peptide bond)

4. Recognize protein structure by looking for NH2 on one side and COOH on the other side

5. Structures
Primary (1) – sequence of AA
Secondary (2) – folds as alpha helix and pleated sheet

6. Proteins Tertiary (3) – folded and coiled – now functional
Quaternary (4) – more than 1 folded

7. 1 2 3 4

8. Proteins can be found in:
Meats
Eggs
Nuts
Eye color
Hair
Skin
Bugs
YOU!

9. Examples Enzymes – speed up reactions by lowering activation energy
Hemoglobin – carries oxygen
Insulin – controls blood sugar
Keratin & Collagen – structure & support
Muscles – contraction
Channel Proteins – transport
Antibodies – defense against pathogens (bad things)

10. Denature – unfolding or unbending of a protein
Caused by a temperature or pH change
EX: Cooking an egg = denaturing by
applying heat