Water, pH and Macromolecules Which of the following acid/base pairs act as natural buffers in living systems? Histidine+/histidine All of these H2PO4-/HPO42- H2CO3/HCO3- Histidine+/histidine All of these H2PO4-/HPO42- H2CO3/HCO3- 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 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 It will act as a buffer and stabilize the pH It will form a membrane in water be repelled by water ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Buffer solutions cause a decrease in pH when acids are added to them. tend to maintain a relatively constant pH. are rarely found in living systems will always have a pH of 7 cause a decrease in pH when acids are added to them. tend to maintain a relatively constant pH. are rarely found in living systems will always have a pH of 7 ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The main difference between an acid and a base is that bases donate hydrogen ions in water while acids accept hydrogen ions acids donate hydrogen ions in water while bases accept hydrogen ions acids are polar molecules and bases are not bases are polar molecules and acids are not bases donate hydrogen ions in water while acids accept hydrogen ions acids donate hydrogen ions in water while bases accept hydrogen ions acids are polar molecules and bases are not bases are polar molecules and acids are not ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following will easily dissolve in a polar solvent? methane sodium chloride argon gasoline (heptanes & octanes) methane sodium chloride argon gasoline (heptanes & octanes) ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The reason that fats contain more energy than simple sugars, is fats have many more hydrogen atoms carbon atoms hydrogen bonds covalent bonds hydrogen atoms carbon atoms hydrogen bonds covalent bonds ANSWER DOWNLOAD EXAMIANS APP
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