Water, pH and Macromolecules Polyprotic acids such as H3PO4, can act as acid-base buffers at pH values around any of their pKa's if their concentration is kept low at pH values around neutrality only in combination with polyprotic bases at pH values around any of their pKa's if their concentration is kept low at pH values around neutrality only in combination with polyprotic bases ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules H2O and CH4 are both examples of ions molecules acids none of these ions molecules acids none of these ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Most of the important functional groups in biological molecules contain oxygen and/or nitrogen and are polar oxygen and a phosphate oxygen and/or nitrogen and are acidic nitrogen and a phosphate oxygen and/or nitrogen and are polar oxygen and a phosphate oxygen and/or nitrogen and are acidic nitrogen and a phosphate ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules A compound that is capable of forming hydrogen bonds with water does not dissolve well in water is probably held together by noncovalent bonds should act as a good buffer for acids and bases contains at least some polar covalent bonds does not dissolve well in water is probably held together by noncovalent bonds should act as a good buffer for acids and bases contains at least some polar covalent bonds 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 be attracted to water It will form a membrane in water be repelled by water It will act as a buffer and stabilize the pH It will be attracted to water It will form a membrane in water be repelled by water It will act as a buffer and stabilize the pH ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following character does not apply to water? The covalent bonds in water are highly polarized The water molecule is asymmetric The water molecule readily forms hydrophobic interactions All three atoms in the water molecule readily form hydrogen bonds The covalent bonds in water are highly polarized The water molecule is asymmetric The water molecule readily forms hydrophobic interactions All three atoms in the water molecule readily form hydrogen bonds ANSWER DOWNLOAD EXAMIANS APP
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