Water, pH and Macromolecules The pH of a solution is determined by concentration of salt relative concentration of acids and bases dielectric constant of the medium environmental effect concentration of salt relative concentration of acids and bases dielectric constant of the medium environmental effect ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Polyprotic acids such as H3PO4, can act as acid-base buffers at pH values around any of their pKa's at pH values around neutrality if their concentration is kept low only in combination with polyprotic bases at pH values around any of their pKa's at pH values around neutrality if their concentration is kept low only in combination with polyprotic bases ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules If protein is made exclusively from nonpolar amino acids, then it will this protein interact with water? It will form a membrane in water be repelled by water It will be attracted to water It will act as a buffer and stabilize the pH It will form a membrane in water be repelled by water It will be attracted to water It will act as a buffer and stabilize the pH ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The dissociation constant of H2O at 25° C is 107 M 10-7 M 1014 M 10-14 M 107 M 10-7 M 1014 M 10-14 M ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules A biological polymer contains alanine, tyrosine, and lysine. Which of the following will be true about this molecule? Strong base Phospholipid DNA Protein Strong base Phospholipid DNA Protein ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following statements about covalently bonded molecules is false? Such molecules often result from the interaction of ionized atoms Noncovalent bonds may also be present, especially if the molecule is large Electrons are shared between the atoms that make up the molecule The chemical bonds that hold the molecule together are relatively strong Such molecules often result from the interaction of ionized atoms Noncovalent bonds may also be present, especially if the molecule is large Electrons are shared between the atoms that make up the molecule The chemical bonds that hold the molecule together are relatively strong ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS