Water, pH and Macromolecules The elements oxygen, nitrogen, and carbon are common elements in the molecules that make up living organisms All of these can all form covalent bonds with other elements contain protons and neutrons in their atomic nuclei are common elements in the molecules that make up living organisms All of these can all form covalent bonds with other elements contain protons and neutrons in their atomic nuclei ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Molecules in which the atoms are held together by __________ bonds have the strongest chemical linkages. hydrogen ionic covalent noncovalent hydrogen ionic covalent noncovalent ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Polyprotic acids such as H3PO4, can act as acid-base buffers if their concentration is kept low at pH values around neutrality only in combination with polyprotic bases at pH values around any of their pKa's if their concentration is kept low at pH values around neutrality only in combination with polyprotic bases at pH values around any of their pKa's ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The lone pair electrons on oxygen in a H20 molecule carry a partial positive charge form covalent bonds in ice carry a partial negative charge are not important for the properties of water carry a partial positive charge form covalent bonds in ice carry a partial negative charge are not important for the properties of water ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following character does not apply to water? All three atoms in the water molecule readily form hydrogen bonds The water molecule is asymmetric The covalent bonds in water are highly polarized The water molecule readily forms hydrophobic interactions All three atoms in the water molecule readily form hydrogen bonds The water molecule is asymmetric The covalent bonds in water are highly polarized The water molecule readily forms hydrophobic interactions 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 form a membrane in water be repelled by water It will act as a buffer and stabilize the pH It will be attracted to water It will form a membrane in water be repelled by water It will act as a buffer and stabilize the pH ANSWER DOWNLOAD EXAMIANS APP
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