Protein

·       Are made of chains called Amino Acids.

·       Amino Acids link to form protein molecules through peptide bonds

·       Peptide bonds fold the protein into shapes and hold it together (shapes depend on the particular amino acid and their order)

·       Protein’s shape helps determine its function:

Fibrous protein = rope like fibres provides structure for   

                               connective tissue

                              Ex:

Gobular protein= rounded shape for effective carriers

                              Ex: 

Protein in the BODY

-         During digestion, proteins are denatured by hyrdrochloric acid in the stomach, making it easier to break the peptide bonds.

-         Proteins enter our blood as individual amino acids where they travel to cells

-         PROTEIN=natures body builders

Used mainly to help the body grow & repair, and also plays a major role in fighting disease because pieces of our immune system are proteins.

·       Structural proteins-needed in every cell

·       New growth=repair and replace cells

·       Body processes=enzymes and hormones

·       Deliver and Store nutrients

·       Antibodies=

·       Stabilizers=

·       Supply energy=

-         The body can make all but 9 of the amino acids it needs to function.

-         9 Essential amino acids MUST come from the food we eat.

Complete Protein: supplies all 9 essential amino acids

          Ex: 

Incomplete Protein: is lacking one or more of the essential amino acids.

Ex: