Water, pH and Macromolecules Which of the following acid/base pairs act as natural buffers in living systems? All of these H2CO3/HCO3- H2PO4-/HPO42- Histidine+/histidine All of these H2CO3/HCO3- H2PO4-/HPO42- Histidine+/histidine ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following statements about water is correct? Nonpolar substances like oils are not soluble in it It is critical for many of the chemical processes found in living systems Polar substances that can form hydrogen bonds will dissolve in it All of these Nonpolar substances like oils are not soluble in it It is critical for many of the chemical processes found in living systems Polar substances that can form hydrogen bonds will dissolve in it All of these ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The strength of an acid depends on number of neutrons gain electronegativity number of protons released number of double bonds number of neutrons gain electronegativity number of protons released number of double bonds ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The elements oxygen, nitrogen, and carbon contain protons and neutrons in their atomic nuclei can all form covalent bonds with other elements All of these are common elements in the molecules that make up living organisms contain protons and neutrons in their atomic nuclei can all form covalent bonds with other elements All of these are common elements in the molecules that make up living organisms ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following organic groups are found in naturally occuring amino acids? Indole Imidazole All of these Guanidinium ion Indole Imidazole All of these Guanidinium ion ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The reactions of molecules All of these require an enzyme in all cases are the reactions of the functional groups are independent of the functional groups All of these require an enzyme in all cases are the reactions of the functional groups are independent of the functional groups ANSWER DOWNLOAD EXAMIANS APP