1. PROTEIN NOTES

2. Proteins
Large, complex molecules composed of many smaller molecules called amino acids
Elements in proteins – carbon, hydrogen, oxygen & nitrogen

3. Functions in the body Builds and repairs cells Form bones & muscles
Help fight disease
Transport substances
Regulate cell processes & control the rate of reactions

4. Examples
Structural – feathers, keratin in hair and nails, collagen (connective tissue)
Functional - enzymes

5. Building Blocks Peptides – arrangements of amino acids (proteins)
Amino Acids – the building blocks of proteins
More than 20 different kinds in humans
Peptides – arrangements of amino acids (proteins)
Peptide bonds – holds peptides together

6. Enzymes Functional proteins (catalysts)
Substance that speeds up the rate of a chemical reaction over 2000 times
Acts on a specific substance
Examples: Lactase (works on lactose), Galactase (works on galactose)

7. Foods/Words that Indicate Proteins:
Milk protein, Soy protein, Vegetable protein, Meat protein
Whey
Egg Whites or Whole eggs (not egg yolks)
Chicken
Beef
Turkey
Pork
Seafood
Milk products
Cheese products
Beans
Any kind of nuts (peanuts, almonds, etc.)
Gelatin
Seeds

8. Food Energy
1 gram of protein is 4 calories

9. Website Link