3. without a salt bridge charge buildup will cause the cell reaction to stop. (1)Reduction occurs at the cathode. (2)A spontaneous reaction generates an electrical current in a voltaic cell. (3) without a salt bridge charge buildup will cause the cell reaction to stop.
Peptide Bonds. The joining of amino acids in the process of making biochemical molecules like proteins is done by bonds which are referred to as peptide bonds. This may be illustrated with the two simplest amino acids, glycine and alanine.
Amino acids can be linked by a condensation reaction in which an âOH is lost from the carboxyl group of one amino acid along with a hydrogen from the amino group of a second, forming a molecule of water and leaving the two amino acids linked via an amideâcalled, in this case, a peptide bond.