Although amino acids have "acid" in their name, some are acidic in water solutions, some are basic, and others are neutral. propose an explanation for this observation based on the structures and descriptions of the amino acids below.21. the structure shown below is a line drawing of noncyclic amp, an important messenger molecule in molecular communication systems. a. draw the missing carbon and hydrogen atoms on the molecule. b. write the chemical formula for a molecule of noncyclic amp.22. the phosphate functional group in the noncyclic amp molecule of question 21 contains "acidic hydrogens."a. explain what this phrase means. b. draw the noncyclic amp molecule after it has dissolved in water.