Water, pH and Macromolecules Which of the following acid/base pairs act as natural buffers in living systems? Histidine+/histidine H2PO4-/HPO42- All of these H2CO3/HCO3- Histidine+/histidine H2PO4-/HPO42- All of these H2CO3/HCO3- ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Molecules in which the atoms are held together by __________ bonds have the strongest chemical linkages. ionic covalent hydrogen noncovalent ionic covalent hydrogen noncovalent ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Most of the important functional groups in biological molecules contain oxygen and a phosphate oxygen and/or nitrogen and are polar oxygen and/or nitrogen and are acidic nitrogen and a phosphate oxygen and a phosphate oxygen and/or nitrogen and are polar oxygen and/or nitrogen and are acidic nitrogen and a phosphate ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules A solution with pH = 5 is __________ than a solution with pH = 7. 100 times more acidic 10 times more acidic 10 times more basic 2 times more basic 100 times more acidic 10 times more acidic 10 times more basic 2 times more basic ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following statements about water is correct? Nonpolar substances like oils are not soluble in it Polar substances that can form hydrogen bonds will dissolve in it It is critical for many of the chemical processes found in living systems All of these Nonpolar substances like oils are not soluble in it Polar substances that can form hydrogen bonds will dissolve in it It is critical for many of the chemical processes found in living systems All of these ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The dissociation constant of H2O at 25° C is 107 M 10-7 M 10-14 M 1014 M 107 M 10-7 M 10-14 M 1014 M ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS