chemistry of biological molecules
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The movement of matter and energy around the planet is very important, and its study draws on geology, and meterology in addition to chemistry. Energy tends to flow upwards from plantlike producers to herbivores to carnivores before being decomposed by detritovores and cycling back into energy usable by producers, in addition to the photosynthesis or chemosynthesis used by producers to produce energy. Like energy, compounds vital to life s...more
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Oxidation and reduction in cellular respiration. Reconciling the biology and chemistry definitions of oxidation and reduction.
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July 26, 2007 presentation by Craig Heller for the Stanford University Office of Science Outreach's Summer Science Lecture Series. Craig Heller, Professor of Biological Sciences, shares how and why this novel technique is being developed and its potential to improve the quality of human life and the body's performance.
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We can use methods of genetic analysis to connect phylogenic information to geographical histories. Human migration has left genetic traces on every continent, and allows us to trace our roots back to Africa. Molecular genetic methods allow us to determine whether or not trait states were ancestral, which can have profound implications for fundamental biological ideas.
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The history of life and evolution has been characterized by several key events. These events can be grouped as new hierarchal levels of selection coming into play, as biological units coming together in symbiosis and specialization, or in a number of other ways. Other important events are situations of conflict resolution or information transmission, from the genetic to the cultural level.
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Rocco L. Mancinelli, a Senior Research Scientist with the Search for Extraterrestrial Life, discusses organisms' potential for survival, adaptation and biological evolution in the atmosphere and beyond to outer space.
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Taking a looking at oxidation and reduction in a biological context.
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Chair and Boat Shapes for Cyclohexane.
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R,S (Cahn-Ingold-Prelog) Naming System Example 2.
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Addition of Water (Acid-Catalyzed) Mechanism.
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Newman Projections 2.
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Naming Alkanes with Alkyl Groups.
