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
Water, pH and Macromolecules Which of the following acid/base pairs act as natural buffers in living systems? H2CO3/HCO3- Histidine+/histidine H2PO4-/HPO42- All of these H2CO3/HCO3- Histidine+/histidine H2PO4-/HPO42- All of these ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following will easily dissolve in a polar solvent? gasoline (heptanes & octanes) sodium chloride methane argon gasoline (heptanes & octanes) sodium chloride methane argon ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following character does not apply to water? The water molecule is asymmetric The water molecule readily forms hydrophobic interactions The covalent bonds in water are highly polarized All three atoms in the water molecule readily form hydrogen bonds The water molecule is asymmetric The water molecule readily forms hydrophobic interactions The covalent bonds in water are highly polarized All three atoms in the water molecule readily form hydrogen 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 act as a buffer and stabilize the pH It will form a membrane in water be repelled by water It will be attracted to water It will act as a buffer and stabilize the pH It will form a membrane in water be repelled by water It will be attracted to water ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Buffer solutions tend to maintain a relatively constant pH. cause a decrease in pH when acids are added to them. will always have a pH of 7 are rarely found in living systems tend to maintain a relatively constant pH. cause a decrease in pH when acids are added to them. will always have a pH of 7 are rarely found in living systems ANSWER DOWNLOAD EXAMIANS APP
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