Accidental discovery may hint at answer to a chicken-or-egg question on evolution
For biochemists, it's the which-came-first question: oxygen production by photosynthesis or oxygen consumption by aerobic metabolism?
For biochemists, it's the which-came-first question: oxygen production by photosynthesis or oxygen consumption by aerobic metabolism?
Evolution
10 hours ago
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76
People living all over Los Angeles were urged Wednesday to conserve water after hydrants ran dry as major wildfires erupted around the city.
Environment
Jan 8, 2025
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27
Microprocessors in smartphones, computers, and data centers process information by manipulating electrons through solid semiconductors, but our brains have a different system. They rely on the manipulation of ions in liquid ...
Materials Science
Sep 29, 2022
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676
Mitochondria are the powerhouses of our cells, generating energy that supports life. A giant molecular proton pump, called complex I, is crucial: It sets in motion a chain of reactions, creating a proton gradient that powers ...
Cell & Microbiology
Sep 24, 2020
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425
Researchers at the RIKEN Center for Sustainable Resource Science (CSRS) in Japan have discovered a link between defensive responses in plants and the beautiful but devastating crop parasite witchweed. Published in Nature, ...
Plants & Animals
Sep 2, 2020
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16
Growing evidence suggests that the unique molecular engines that drive photosynthesis arose only once during Earth's history. All the diverse reaction centers—packets of proteins and pigments—in plants, algae, and certain ...
Plants & Animals
Apr 8, 2019
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6
Fuel cells have long been viewed as a promising power source. These devices, invented in the 1830s, generate electricity directly from chemicals, such as hydrogen and oxygen, and produce only water vapor as emissions. But ...
Materials Science
Oct 3, 2018
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