Water, pH and Macromolecules Which of the following statements about covalently bonded molecules is false? Electrons are shared between the atoms that make up the molecule Such molecules often result from the interaction of ionized atoms The chemical bonds that hold the molecule together are relatively strong Noncovalent bonds may also be present, especially if the molecule is large Electrons are shared between the atoms that make up the molecule Such molecules often result from the interaction of ionized atoms 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 Protein DNA Phospholipid Strong base Protein DNA Phospholipid 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 hydrogen noncovalent ionic covalent hydrogen noncovalent ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following acid/base pairs act as natural buffers in living systems? Histidine+/histidine H2PO4-/HPO42- All of these H2CO3/HCO3- Histidine+/histidine H2PO4-/HPO42- All of these H2CO3/HCO3- 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 act as a buffer and stabilize the pH It will be attracted to water be repelled by water It will form a membrane in water It will act as a buffer and stabilize the pH It will be attracted to water be repelled by water ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Hydrogen bonds and hydrophilic interactions are types of weak chemical bonds that hold together the atoms within a molecule weak chemical bonds that link together separate molecules strong chemical bonds that link together separate molecules strong chemical bonds that hold together the atoms within a molecule weak chemical bonds that hold together the atoms within a molecule weak chemical bonds that link together separate molecules strong chemical bonds that link together separate molecules strong chemical bonds that hold together the atoms within a molecule ANSWER DOWNLOAD EXAMIANS APP
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