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Photosynthesis

When we think of radiation, light is a common form. The electromagnetic radiation in sunlight is harnessed by plant pigments for photosynthesis in chloroplasts. Photosynthesis occurs in two stages: the light-dependent phase and light-independent phase, each vital for producing energy and sugars. Explore the process through interactive animations.

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Photosynthesis

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  1. Photosynthesis

  2. What do you think of when you hear the word radiation? • Light is a form of electromagnetic radiation • The difference in types of radiation is that they have different wavelengths • Sunlight contains all pigments of visible light • In plants, light energy is harvested by pigments that are located in the thylaloid membrane of chloroplasts

  3. Electromagnetic Spectrum

  4. Photosynthesis occurs in 2 stages Light dependent phase 2. Light independent phase

  5. Light Dependent Phase • Occurs in the thylakoid • Uses water and light • Produces ATP, NADPH, and Oxygen http://cnre.vt.edu/dendro/forestbiology/photosynthesis.swf http://www.stolaf.edu/people/giannini/flashanimat/metabolism/photosynthesis.swf http://www.compulink.co.uk/~argus/Dreambio/photosynthesis/photosynthsis%20animation.htm

  6. Light Independent phase • Occurs in the stroma • Uses ATP, NADPH, and Carbon Dioxide • Produces Sugar http://glencoe.mcgraw-hill.com/sites/9834092339/student_view0/chapter39/calvin_cycle.html

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