Water, pH and Macromolecules A compound that is capable of forming hydrogen bonds with water does not dissolve well in water contains at least some polar covalent bonds should act as a good buffer for acids and bases is probably held together by noncovalent bonds does not dissolve well in water contains at least some polar covalent bonds should act as a good buffer for acids and bases is probably held together by noncovalent bonds ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Salt dissolves well in water as water molecules 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 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 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 Which of the following statements about covalently bonded molecules is false? Such molecules often result from the interaction of ionized atoms Electrons are shared between the atoms that make up the molecule The chemical bonds that hold the molecule together are relatively strong Noncovalent bonds may also be present, especially if the molecule is large Such molecules often result from the interaction of ionized atoms Electrons are shared between the atoms that make up the molecule The chemical bonds that hold the molecule together are relatively strong Noncovalent bonds may also be present, especially if the molecule is large 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 Phospholipid Protein DNA Strong base Phospholipid Protein DNA ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Weak acids generally have pKa been seldom found in living systems that cannot be used to buffer pKa values greater than 2 values less than 1 been seldom found in living systems that cannot be used to buffer pKa values greater than 2 values less than 1 ANSWER DOWNLOAD EXAMIANS APP
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