Water, pH and Macromolecules Which of the following acid/base pairs act as natural buffers in living systems? H2CO3/HCO3- All of these Histidine+/histidine H2PO4-/HPO42- H2CO3/HCO3- All of these Histidine+/histidine H2PO4-/HPO42- ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Who discovered and described the blood groups (ABO) classification? Theodor Kocher Karl Landsteiner Otto Warburg Karl Hooper Theodor Kocher Karl Landsteiner Otto Warburg Karl Hooper ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The lone pair electrons on oxygen in a H20 molecule carry a partial negative charge form covalent bonds in ice carry a partial positive charge are not important for the properties of water carry a partial negative charge form covalent bonds in ice carry a partial positive charge are not important for the properties of water ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules A compound that is capable of forming hydrogen bonds with water contains at least some polar covalent bonds should act as a good buffer for acids and bases does not dissolve well in water is probably held together by noncovalent bonds contains at least some polar covalent bonds should act as a good buffer for acids and bases does not dissolve well in water is probably held together by noncovalent bonds ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The elements oxygen, nitrogen, and carbon contain protons and neutrons in their atomic nuclei All of these can all form covalent bonds with other elements are common elements in the molecules that make up living organisms contain protons and neutrons in their atomic nuclei All of these can all form covalent bonds with other elements are common elements in the molecules that make up living organisms ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules A Bronsted acid becomes __________ upon losing a proton. highly reactive its conjugate acid a hydronium ion its conjugate base highly reactive its conjugate acid a hydronium ion its conjugate base ANSWER DOWNLOAD EXAMIANS APP
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