Water, pH and Macromolecules The elements oxygen, nitrogen, and carbon are common elements in the molecules that make up living organisms All of these contain protons and neutrons in their atomic nuclei can all form covalent bonds with other elements are common elements in the molecules that make up living organisms All of these contain protons and neutrons in their atomic nuclei can all form covalent bonds with other elements 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? Phospholipid DNA Protein Strong base Phospholipid DNA Protein Strong base ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Molecules in which the atoms are held together by __________ bonds have the strongest chemical linkages. ionic covalent noncovalent hydrogen ionic covalent noncovalent hydrogen ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following indicates that the pK of an acid is numerically equal to the pH of the solution when the molar concentration of the acid and its conjugate base are equal? Haldanes equation Henderson-Hasselbalch equation Michaelis-Menten equation Hardy-Windberg law Haldanes equation Henderson-Hasselbalch equation Michaelis-Menten equation Hardy-Windberg law ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following will easily dissolve in a polar solvent? argon gasoline (heptanes & octanes) methane sodium chloride argon gasoline (heptanes & octanes) methane sodium chloride ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Salt dissolves well in water as water molecules make nonpolar covalent bonds with the positively charged ions only form hydrogen bonds with the positively and negatively charged ions surround the ions because of their charge but do not form hydrogen bonds share electrons with the ions to make polar covalent bonds make nonpolar covalent bonds with the positively charged ions only form hydrogen bonds with the positively and negatively charged ions surround the ions because of their charge but do not form hydrogen bonds share electrons with the ions to make polar covalent bonds ANSWER DOWNLOAD EXAMIANS APP