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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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We can all breath because of oxygen photosynthesis. Here, a diagram of a key O2 catalyst, the metal cluster in photosystem II, one of two O2 photosynthesis mechanisms. On top of it, a tyrosine molecule flips back and forth chemically and physically to speed up electron transfer in the oxygen-producing part of photosynthesis. Credit: Georgia Tech / Ben Brumfield / Barry Lab
