Water, pH and Macromolecules Which of the following acid/base pairs act as natural buffers in living systems? All of these H2PO4-/HPO42- Histidine+/histidine H2CO3/HCO3- All of these H2PO4-/HPO42- Histidine+/histidine H2CO3/HCO3- ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Buffer solutions will always have a pH of 7 are rarely found in living systems cause a decrease in pH when acids are added to them. tend to maintain a relatively constant pH. will always have a pH of 7 are rarely found in living systems cause a decrease in pH when acids are added to them. tend to maintain a relatively constant pH. ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following character does not apply to water? The water molecule readily forms hydrophobic interactions The covalent bonds in water are highly polarized The water molecule is asymmetric All three atoms in the water molecule readily form hydrogen bonds The water molecule readily forms hydrophobic interactions The covalent bonds in water are highly polarized The water molecule is asymmetric All three atoms in the water molecule readily form hydrogen bonds ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The reactions of molecules are the reactions of the functional groups are independent of the functional groups All of these require an enzyme in all cases are the reactions of the functional groups are independent of the functional groups All of these require an enzyme in all cases ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules A solution with pH = 5 is __________ than a solution with pH = 7. 2 times more basic 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 ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The dissociation constant of H2O at 25° C is 10-7 M 107 M 10-14 M 1014 M 10-7 M 107 M 10-14 M 1014 M ANSWER DOWNLOAD EXAMIANS APP
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