Solved by a verified expert:Experiment 1: Paper ChromatographyData Tables and Post-Lab AssessmentTable 1: Part 1: Chromatography DataSolventAcetic AcidAcetone Distance from Original Line to Solvent FrontSolvent: 49mm / Pigment: 11mm 1 Solvent: 51mm / Pigment: 36mm 2 Solvent: 55mm / Pigment: 0mm Mineral OilWater Number of Bands 1 Solvent: 51mm / Pigment: 13mm 1 Rf Factor.2245.70590.2549 Table 2: Part 3: Photosynthesis DataTest Tube Time Required toChange Color Initial Color Final Color Time Required toChange Color (Hours) 123 Post-Lab Questions1. What did the different colored bands signify in each solvent for Part 1? What pigments canyou associate them with?©eScience Labs, LLC 2013 The color bands signified the separation of the chlorophyll a (blue green) chlorophyll b(green) and xanthrophyll (yellow). 2. What is the osmolarity fluid used in Part 2? Why is this important? Why is it essential to keepit cool? The fluid used in Part 2 was Sucrose Solution, it had to be cold since the cold temperatureinhibits the rate of photosynthesis, therefore allowing protection to the proteins. ©eScience Labs, LLC 2013 3. How could you modify this experiment to show the effects of different wavelengths of light onthe photosynthetic rate? You could measure the oxygen produced by the leaves with each different relevantwavelength and record the same. 4. Some plants (grasses) tend to contain a greater concentration of chlorophyll than others(pines). Can you develop a hypothesis to explain this? Would it be testable? If grass and pines are independently tested for photosynthesis rate, then grass will be moreresponsive. Testable. ©eScience Labs, LLC 2013
Recent Comments