Objectives:
1) Prepare an extract of whole works tissue paper (e.g., leaves, flowers).
2) Apply the technique of paper chromatography as a rule for separating individual plant blushers contained in plant tissue extracts containing blusher blends.
2) Describe the application of this technique to the study of plant pigments and damp related testable questions.
3) Generate ideas about ways to improve the technique to yield better results.
INTRODUCTION TO PLANT PIGMENTS
A pigment is simply a molecule that absorbs and reflects light-hearted. Recall that white light actually consists of many intensitys you may have in condition(p) ROY G BIV in high school physics as a way to remember the colors of light that profit up the white light of the visible spectrum. Different pigments step up different colors because they have differing abilities to absorb and reflect different colors of light. (A more thorough discussion of the light-absorbing properties of pigments will be presented in the Spectrophotometry lab.) The broad array of colors found in plant tissues such as leaves, flowers, and results, can be accounted for by the presence of literally thousands of different kinds of plant pigments.
Through plant breeding and horticultural practices, humans have manipulated plants pigment producing capabilities to perform our own desires. News was made recently when a real blue rose cultivar was successfully created in Japan. In nature, color is an important attribute of plants that serves to attract pollinators to receptive flowers and signal fruit ripeness to seed dispersers. In some instances, colors may in any case serve to warn potential predators of poisonous or cyanogenic substances contained in plant tissues.
Color-producing pigments have other important roles in plants beyond regulating interactions with animals. Chlorophyll is a pigment that reflects squirt light, but absorbs red and blue wavelengths and is critical for the light...If you want to shell a full essay, order it on our website: Ordercustompaper.com
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