Figure 11: Chemical structure of leaf pigments. Look at the structure of each set of pigments and see if you can answer the following questions. 1) If you look at the difference between chlorophyll a and chlorophyll b, which molecule will act more polar? 2) That being the case, which one will we expect to travel farther up the paper in the nonpolar solvent? 3) If you look at the difference between Beta Carotene and the two Xanthrophylls (they are shown together in one image because they are isomers of each other, and the isomers are named zeaxanthin and Lutein) which will be less polar (Beta Carotene or the Xanthrophylls)? 4) That being the case, which one will we expect to travel farther up the paper in the nonpolar solvent