Which level of protein structure would include disulfide bridges? A) primary B) secondary C) tertiary D) quaternary E) not a feature of proteins The ionic bond of sodium chloride is formed when A) sodium and chlorine share an electron pair. B) sodium and chlorine both lose electrons from their outer valance shells. C) chlorine gains an electron from sodium. D) sodium gains an electron from chlorine. E) chlorine gains a proton from sodium. In general, bases that are dissolved in water dissociate and release: A) protons (p^+) B) hydrogen ions (H^+) C) hydronium ions (H_3 O^+) D) hydroxide ions (OH^-) E) electrons (e^) The amino acids commonly found in proteins exhibit different chemical and physical properties because of differences in their: A) carboxyl groups. B) amino groups. C) side chains (R groups). D) tertiary structure. E) Both A and B are correct. Biological polymers such as polysaccharides and proteins are synthesized from monomers by which process? A) the addition of water to each monomer B) the removal of water (dehydration synthesis) C) ionic bonding of the monomers D) the formation of hydrophobic bridges between monomers E) the formation of hydrogen bonds Which amino acid can create kinks in the structure of protein chains because its side chain attaches to the backbone in two places? A) glycine B) proline C) histidine D) glutamate E) leucine