The following is the "line-angle" drawing of a molecule called silicic acid, an important plant hormone that has been described to play an essential role in the activation and regulation of multiple responses to biotic and to abiotic. The carbon atoms and the hydrogen atoms bonded to them are not shown but implied. HO HO a) What is the molecular formula for this molecule? (0.25 points each) i) How many H? ii) How many C? iii) How many O? iv) Molecular formula (CxHxOx): b) What are isomers? Use your iv) answer as an example. (0.5 points) c) Can you identify functional groups? (0.33 each) i. Are the functional groups polar or non-polar? ii. What does polar mean in this context? iii. Which functional groups can participate in hydrogen bond formation? d) Why can a C atom form up to four covalent bonds whereas H is able to form only one covalent bond? Explain your answer using your own words. (I point) The figure below shows an important macromolecule: I't Cytosine DIFF Uracil the 3' end? (0.25 points) Guanine IF R Adenine a) Is this macromolecule a polymer? If yes, what are the subunits? Explain your answer. (0.5 points) b) From the structure, could you identify the specific type within this group of macromolecules? If yes, how? (0.5 points) c) Name and describe at least 3 differences between these macromolecule subtypes. (0.75 points) d) Where would you find the 5' end in this macromolecule? (0.25 points)