Relier Pairs ProteinsVersion en ligne proteins part 1 par Danielle Woods 1 protein absorption 2 basic structure of amino acid 3 protein digestion in stomach 4 quaternary structure 5 tertiary structure 6 how many nonessential amino acids? 7 protein digestion in small intestine 8 peptide bonds 9 secondary structure 10 primary structure 11 denaturation of protein 12 how many essential amino acids? amine group, R group (side chain), carboxyl group, hydrogen 3D globular shape, folding of polypeptide chain proteases released by pancreas, breaking down polypeptides to dipeptides and tripeptides, which are further broken down into amino acids join 2 amino acids together eleven single peptide chain, simple linear chain gastrin releases HCl, HCl denatures proteins and converts pepsinogen to pepsin unfolding of proteins occurring in presence of heat, acid, base, salt, or mechanical agitation nine absorbed in small intestine, transported to liver from intestines via portal vein slightly folded and twisted two or more polypeptide chains bond together