مصادر الكيمياء موقع لتعليم الكيمياء بصورة مبسطة
Organic compounds possessing one or more basic amino groups and one or more acidic carboxyl groups. Of the more than 80 amino acids which have been found in living organisms, about 20 serve as the building blocks for the proteins. All the amino acids of proteins, and most of the others which occur naturally, are aamino acids, meaning that an …
أكمل القراءة »