Water, pH and Macromolecules Which of the following acid/base pairs act as natural buffers in living systems? Histidine+/histidine H2PO4-/HPO42- H2CO3/HCO3- All of these Histidine+/histidine H2PO4-/HPO42- H2CO3/HCO3- All of these 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 form a membrane in water It will be attracted to water be repelled by water It will act as a buffer and stabilize the pH It will form a membrane in water It will be attracted to water be repelled by water It will act as a buffer and stabilize the pH ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following character does not apply to water? The water molecule is asymmetric All three atoms in the water molecule readily form hydrogen bonds The covalent bonds in water are highly polarized The water molecule readily forms hydrophobic interactions The water molecule is asymmetric All three atoms in the water molecule readily form hydrogen bonds The covalent bonds in water are highly polarized The water molecule readily forms hydrophobic interactions ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following alcohols would be most soluble in water? butanol ethanol methanol octanol butanol ethanol methanol octanol ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules What is the concentration, in moles/liter, of the hydrogen ion, if pH of a solution is 7? 1 x 10-7 7 7 x 10-7 5 x 10-7 1 x 10-7 7 7 x 10-7 5 x 10-7 ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The reactions of molecules are independent of the functional groups are the reactions of the functional groups All of these require an enzyme in all cases are independent of the functional groups are the reactions of the functional groups All of these require an enzyme in all cases ANSWER DOWNLOAD EXAMIANS APP
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