Chapter 8 - Chapter 8 Photosynthesis Photosynthesis...

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Chapter 8 - Photosynthesis Photosynthesis - biochemical process by which plants capture energy from sunlight, they store the energy as carbohydrates-the whole process basis for all of life on earth-gives ozone layer. (Ex. Plants cattle humans) Occur in chloroplast-found in plants and some bacteria Cells appear green 6CO + 12H o C H O + 6H O + 6O ₆ ₁₂ ₆ Water important comes from soil through transportation, driven because water evaporates. CO -comes in through stomata-little pores/openings in the leaf. Two Pathways: 1. Light Reaction - requires light directly, driven by energy from the sunlight, which is captured by chlorophyll. Chlorophyll 2. Dark Reaction -(Calvin-Benson Cycle) - does not use light directly, but it uses ATP and NADPH which is formed during the light reaction. CO modified into sugars. Pigments - absorb light in the visible range, able to see the light they scatter/reflect. Absorbs a particular wavelength of light-the light being absorbed=photon. (400 violet 700 red). Chlorophyll is green & absorbs red and blue. Light is put into energy molecules- photons (packet of visible light). Have ring structure-will absorb light of particular wavelength. When this happens,
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Chapter 8 - Chapter 8 Photosynthesis Photosynthesis...

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