![]() ![]() Plants can also generate ATP by a similar mechanism along thylakoid membranes of their chloroplasts. Most of the ATP in animal cells is generated within the mitochondria. During this electron transport process, ATP is generated by a complex chemical mechanism known as chemiosmosis. Electrons from glucose are shuttled through a cytochrome transport system along the membranes of the cristae. The inner membrane forms a series of inwardly-projecting folds called cristae. Simplified Illustration Of A Mitochondrion This is essentially the same phenomenon as a neon light, except the electrons of neon gas molecules in the glass tube become excited and then release their energy as a white glow.Ģ. Therefore, the chlorophyll electrons give up their excited energy state by releasing energy in the form of a reddish glow. ![]() The chlorophyll electrons become excited by the light energy, but have no cytochrome transport system to flow along because the chloroplast thylakoid membranes have been dissolved away. This phenomenon is known as fluorescence. When a bright beam of light is directed at the chlorophyll solution in the test tube, it gives off a reddish glow. Chlorophyll molecules impart the green color to the solution however, the actual chloroplasts and thylakoid membranes have been dissolved. The solution is then filtered through cheesecloth and coarse filter paper to remove the impurities and debris. ![]() Right: Beam of light directed at the chlorophyll solution producing a reddish glow called fluorescence.Ī transparent-green chlorophyll solution can be made by grinding up spinach leaves or grass with acetone in a mortar and pestle. Left: A transparent-green chlorophyll solution of ground up spinach leaves and acetone.
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