1. Proteins

2. Proteins Made up of amino acids - “building blocks of proteins”
Plants & animals
Need to be broken down into amino acids before our body can use them
Made into proteins to be used
Converted to energy
Stored as fat

3. Why Do We Need Protein?
Proteins are essential in order for our body to function correctly.
Enzymes
Transportation & Storage
Cell & Tissue Growth
Mechanical Support
Coordination & Motion
Immune Protection
Nerve Generation & Impulses
Fluid Balances
Read handout describing in more detail what each of these actually mean.

4. Amino Acids
Non-essential amino acids – ones that can be produced in our body (12)
Essential amino acids – ones that are required in the diet but body cannot make – need to get from foods we eat (8)

5. Essential Amino Acids (8)
Phenylalaline
Tryptophan
Valine
Leucine
Isoleucine
Lysine
Methionine
Arginine

6. Functions of Proteins in Foods
Three major functions
Color
Texture
Flavor
Influenced by whipping, beating, adding ingredients or heating