Water, pH and Macromolecules Which of the following acid/base pairs act as natural buffers in living systems? H2CO3/HCO3- Histidine+/histidine All of these H2PO4-/HPO42- H2CO3/HCO3- Histidine+/histidine All of these H2PO4-/HPO42- 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? Protein DNA Phospholipid Strong base Protein DNA Phospholipid Strong base ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following organic groups are found in naturally occuring amino acids? Imidazole Guanidinium ion Indole All of these Imidazole Guanidinium ion Indole All of these ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules A Bronsted acid becomes __________ upon losing a proton. its conjugate base its conjugate acid highly reactive a hydronium ion its conjugate base its conjugate acid highly reactive a hydronium ion ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Polyprotic acids such as H3PO4, can act as acid-base buffers at pH values around neutrality at pH values around any of their pKa's if their concentration is kept low only in combination with polyprotic bases at pH values around neutrality at pH values around any of their pKa's if their concentration is kept low only in combination with polyprotic bases ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The reactions of molecules are independent of the functional groups require an enzyme in all cases are the reactions of the functional groups All of these are independent of the functional groups require an enzyme in all cases are the reactions of the functional groups All of these ANSWER DOWNLOAD EXAMIANS APP
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