BSCI 105 Chapter Notes - Chapter 10: Light-Harvesting Complex, Photosynthetic Reaction Centre, Photosystem I

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Photosynthesis in a nutshell- chloroplasts of plants capture light energy and convert it to chemical energy that is stored in sugar and other organic molecules. Nourishes entire world: organism gets organic compound it uses for energy and carbon skeleton by one of 2 ways. Autotrophs- self feeders- sustain themselves without eating other things that are derived from other living things, but can be a source for others. Produce their organic molecules from co2 and other raw inorganic materials from the environment. Plants are because they just get water and nutrients from the soil and co2 from air- specifically photoautotrophs because they use light also to synthesize organic molecules. Heterotrophs- get organic compounds from other organisms; consumers. Dependent on photoautotrophs for food and o2 (byproduct of photosynthesis) Photosynthesis probably originated from bacteria"s molecules in plasma membrane, which is now known as a chloroplast in a eukaryotic cell.

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