Water, pH and Macromolecules The reactions of molecules are independent of the functional groups All of these are the reactions of the functional groups require an enzyme in all cases are independent of the functional groups All of these are the reactions of the functional groups require an enzyme in all cases ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following organic groups are found in naturally occuring amino acids? Guanidinium ion All of these Imidazole Indole Guanidinium ion All of these Imidazole Indole ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The dissociation constant of H2O at 25° C is 1014 M 10-7 M 10-14 M 107 M 1014 M 10-7 M 10-14 M 107 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? Phospholipid DNA Strong base Protein Phospholipid DNA Strong base Protein 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 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 If protein is made exclusively from nonpolar amino acids, then it will this protein interact with water? be repelled by water It will form a membrane in water It will act as a buffer and stabilize the pH It will be attracted to water be repelled by water It will form a membrane in water It will act as a buffer and stabilize the pH It will be attracted to water ANSWER DOWNLOAD EXAMIANS APP