1. The molecules that form life
Proteins

2. Vocabulary
Protein
Amino Acid
Polypeptide
Peptide Bond

3. Characteristics of Proteins
Consist of:
Carbon
Hydrogen
Oxygen
Nitrogen
Sulfur

4. Characteristics of Proteins
Function:
Build and repair tissue
Control chemical reactions (Enzymes)

5. Types of Proteins: Enzymes: Structural Proteins: Signaling Proteins:
build and break down molecules - Lactase
Structural Proteins:
strengthen cells, tissues and organs Fibroin (silk)
Signaling Proteins:
cell communication - Insulin

6. Types of Proteins: Regulatory Proteins: Transport Proteins:
turn DNA on and off - Estrogen
Transport Proteins:
move molecules in the body - Hemoglobin
Sensory Proteins:
help to detect the world around us – Olfactory (Smell)

7. Types of Proteins: Motor Proteins: Defense Proteins: Storage Proteins:
make motion possible - muscle
Defense Proteins:
fight infection - Antibodies
Storage Proteins:
store nutrients - Gluten

8. Building Blocks of Protein
Amino Acids
Monomer of Protein
20 amino acids needed by humans
Polymerized by ribosome into protein
Information to make protein is in DNA

9. Polymerization Peptide Bonds - bonds between amino acids
Polypeptide – chains of amino acids
Large polypeptides fold in on themselves, at that point we call those proteins.

10. Vocabulary
Protein –polypeptide made of amino acids, performs life functions
Amino Acid – monomer of protein, twenty used by humans
Polypeptide – chain of amino acids, normally short and not folded
Peptide Bond – bond between amino acids