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 Salt dissolves well in water as water molecules share electrons with the ions to make polar covalent bonds form hydrogen bonds with the positively and negatively charged ions surround the ions because of their charge but do not form hydrogen bonds make nonpolar covalent bonds with the positively charged ions only share electrons with the ions to make polar covalent bonds form hydrogen bonds with the positively and negatively charged ions surround the ions because of their charge but do not form hydrogen bonds make nonpolar covalent bonds with the positively charged ions only ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Most of the important functional groups in biological molecules contain oxygen and/or nitrogen and are polar oxygen and/or nitrogen and are acidic nitrogen and a phosphate oxygen and a phosphate oxygen and/or nitrogen and are polar oxygen and/or nitrogen and are acidic nitrogen and a phosphate oxygen and a phosphate 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 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 ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Hydrogen bonds and hydrophilic interactions are types of weak chemical bonds that link together separate molecules weak chemical bonds that hold together the atoms within a molecule strong chemical bonds that link together separate molecules strong chemical bonds that hold together the atoms within a molecule weak chemical bonds that link together separate molecules weak chemical bonds that hold together the atoms within a molecule strong chemical bonds that link together separate molecules strong chemical bonds that hold together the atoms within a molecule ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules A biological polymer contains alanine, tyrosine, and lysine. Which of the following will be true about this molecule? Strong base DNA Protein Phospholipid Strong base DNA Protein Phospholipid ANSWER DOWNLOAD EXAMIANS APP
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