Carotene Use this chromatogram to measure the distances for your data table Distance traveled by solvent cm Xanthopyll C

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Carotene Use This Chromatogram To Measure The Distances For Your Data Table Distance Traveled By Solvent Cm Xanthopyll C 1 (54.04 KiB) Viewed 51 times

Carotene Use This Chromatogram To Measure The Distances For Your Data Table Distance Traveled By Solvent Cm Xanthopyll C 2 (50.99 KiB) Viewed 51 times

Carotene Use This Chromatogram To Measure The Distances For Your Data Table Distance Traveled By Solvent Cm Xanthopyll C 3 (55.99 KiB) Viewed 51 times

Carotene Use this chromatogram to measure the distances for your data table Distance traveled by solvent cm Xanthopyll Chloropyla Chlorophylb Distance traveled by carotene cm cm cm cm Loading line EXPERIMENT 2: Pigment Distribution and Photosynthesis in Coleus Leaves Background The process of photosynthesis is a complex series of chemical reactions that begins with carbon dioxide and water and ends with carbohydrates such as glucose and starch (molecules of high potential energy). Photosynthesis converts the energy of sunlight into the energy of chemical bonds. The energy is initially trapped in chemical bonds of ATP molecules, and later is incorporated into the bonds of glucose and other sugar molecules. ENTYMES - 60, 600, GH₂O, + 6H20 + light carbon dioxide oxygen (gas in the air we breathe) glucose (food we eat) water energy Importantly, excess of glucose produced in photosynthesis is used by plants to make starch (a storage polysaccharide). Experimentally, the presence of starch can be detected by iodine
EXPERIMENT 1: Separating Spinach Leaf Pigments by Paper Chromatography 1. Using the chromatogram shown on p.3, measure the distances traveled by the solvent and by four indicated pigments, calculate the Rf values and record all the data in Table 1 below. Table 1 Pigment Color Pigment name Distance traveled by pigment (cm) Distance traveled by solvent (cm) RValue (use formula on p.2) on the same for rent 2. Answer the following questions: Questions Answers 1) What are pigments and how do plants use them? 2) Describe what happened to the original spot of plant pigment extract applied to the chromatography paper 3) Why must the line on chromatography paper be drawn in pencil and not pen? 4) Based on the provided chromatogram and Table 1 data,
which pigment was the most polar and which was the least polar? 5) Why do most plants appear to be green? 6) Why are the other colored pigments in leaves not seen during the summer months? What allows these other colored pigments to be seen during the fall months? 7) Green pigments are essential for photosynthesis to take place. How do you think that a Japanese maple tree, which has only red leaves, can carry on photosynthesis? 8) Explain how a crime lab could use paper chromatography to determine if lipstick found at a crime scene matched the lipstick of a suspect.