SAT2考试是SAT subject test的通常说法，SAT2考试有别于SAT1，它是一种专项考试，考察学生某一科目的能力。下面就为大家介绍一下SAT2生物核心词汇：血脂和磷脂，希望对即将报名SAT2生物考试的同学有所帮助。

　　Polypeptides

　　All proteins are made of chains of some orall of these 20 amino acids. The bond formed between two amino acids bydehydration synthesis is known as a peptide bond.