ch369_sp11_photo_1_notes

Ch369_sp11_photo_1_n - Photosynthesis Chapter 16(or 14 Photosynthesis Photosynthesis uses the energy of sunlight to convert CO2 into carbohydrates

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Photosynthesis - Chapter 16 (or 14)
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Photosynthesis Photosynthesis uses the energy of sunlight to convert CO 2 into carbohydrates and other organic molecules that are useful to plants. Plant cells. The little green things are chloroplasts. Chloroplasts - where photosynthesis occurs in plants. chloroplast
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4 x 10 years ago 9 Now first life 3 x 10 years ago 9 2 x 10 years ago 9 1 x 10 years ago 9 Photosynthesis in cyanobacteria increasing oxygen in atmosphere earth forms Photosynthesis in plants, 550 million years ago. About 550 million years ago, a cyanobacterium was engulfed by a single-celled eukaryote. This event formed the ancestor of modern plants. Photosynthetic bacteria (cyanobacteria) appeared about 2.7 billion years ago, producing O 2 (and changing the earth’s atmosphere).
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Filamentous cyanobacteria. “cyanobacteria” refers to their cyan color. Little green chloroplasts inside plant cells evolved from a cyanobacterium that was engulfed by a eukaryote about 550 million years ago.
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Chloroplast diagram.
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Another chloroplast diagram.
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Sunlight contains energy! The energy carried in a photon depends on its wavelength. Planck equation: Summary: short wavelength = high energy photon, long wavelength = lower energy photon.
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high energy photons low energy photons The whole electromagnetic spectrum.
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light reactions ” and “ dark reactions ”. Dark reactions use the energy stored within ATP and NADPH for the synthesis of carbohydrates and other biomolecules from CO 2 . Light reactions:
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This note was uploaded on 06/20/2011 for the course CHEM 369 taught by Professor Hoffman during the Spring '11 term at University of Texas at Austin.

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Ch369_sp11_photo_1_n - Photosynthesis Chapter 16(or 14 Photosynthesis Photosynthesis uses the energy of sunlight to convert CO2 into carbohydrates

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