Friday_Study_Session_Photosynthesis

Friday_Study_Session_Photosynthesis - Friday Study Session...

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Chemistry XXI Friday Study Session (an informal review for exam1) February 5, 2010
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Chemistry XXI The Origin of Life In class we have been focusing on chemical reactions that could have been the initial reactions leading to the formation of complex amino acids from simpler molecules. Today, we will focus on a related, but more complex reaction which later in the history of our planet fueled the evolution of life as we know it today.
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Photosynthesis The first evidence of life on Earth appears about 4 billion years ago. It took 2 billion years longer to give rise to the first photosynthetic organisms. These organisms (cyanobacteria, being among the first) are able to take in carbon dioxide and water in order to produce glucose (C 6 H 12 O 6 ) and molecular oxygen. The production of O 2 was then able to give rise to aerobic, terrestrial species. How can we make predictions about the relative energetic and entropic (Thermodynamic) stability of this reaction? Begin by writing a balanced chemical equation for the
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Friday_Study_Session_Photosynthesis - Friday Study Session...

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