Water, pH and Macromolecules Which of the following acid/base pairs act as natural buffers in living systems? All of these Histidine+/histidine H2CO3/HCO3- H2PO4-/HPO42- All of these Histidine+/histidine H2CO3/HCO3- H2PO4-/HPO42- 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 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 It will act as a buffer and stabilize the pH ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The main difference between an acid and a base is that acids donate hydrogen ions in water while bases accept hydrogen ions bases are polar molecules and acids are not acids are polar molecules and bases are not bases donate hydrogen ions in water while acids accept hydrogen ions acids donate hydrogen ions in water while bases accept hydrogen ions bases are polar molecules and acids are not acids are polar molecules and bases are not bases donate hydrogen ions in water while acids accept hydrogen ions ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Salt dissolves well in water as water molecules surround the ions because of their charge but do not form hydrogen bonds make nonpolar covalent bonds with the positively charged ions only form hydrogen bonds with the positively and negatively charged ions share electrons with the ions to make polar covalent bonds surround the ions because of their charge but do not form hydrogen bonds make nonpolar covalent bonds with the positively charged ions only form hydrogen bonds with the positively and negatively charged ions share electrons with the ions to make polar covalent bonds ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The strength of an acid depends on electronegativity number of protons released number of neutrons gain number of double bonds electronegativity number of protons released number of neutrons gain number of double bonds ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules A compound that is capable of forming hydrogen bonds with water should act as a good buffer for acids and bases contains at least some polar covalent bonds does not dissolve well in water is probably held together by noncovalent bonds should act as a good buffer for acids and bases contains at least some polar covalent bonds does not dissolve well in water is probably held together by noncovalent bonds ANSWER DOWNLOAD EXAMIANS APP
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