The extra costs forprenatal care and complicated births among women whosmoke during pregnancy are more than $4 billion ayear. 1 Care for childhood illnesses resulting fromexposure to tobacco smoke costs nearly $8 billion a year.As a result, reducing parental smoking can producesubstantial economic benefits for society.
If the amine and carboxylic acid functional groups in amino acids join together to form amide bonds, a chain of amino acid units, called a peptide, is formed. A simple tetrapeptide structure is shown in the following diagram.
For the best answers, search on this site https://shorturl.im/avbth. e. peptide The covalent bond that links amino acids together is called a peptide bond. Two amino acids linked together by a peptide bond is called a dipeptide. When many amino acids are linked together by peptide bonds it is called a polypeptide. ------------------------- Peptide bond A covalent bond between two amino acids, in which the carboxyl group of one amino acid and the amino group of another amino acid react to form an amide bond. (Protein Evolution: Second Edition.