Our body is compost of about 70% water which means that majority of the chemical processes 

happens in aqueous medium. Of the residues of the following amino acids: methionine, histidine, 

arginine, phenylalanine, valine, glutamine and glutamic acid, which would you expect to find

a. on the surface of a protein

b. in the interior

"Get 15% discount on your first 3 orders with us"
Use the following coupon
"FIRST15"

Order Now