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Signal Transmission and Gene Expression

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Published on Jul 30, 2011

032 - Signal Transmission and Gene Expression

Paul Andersen explains how signal transmission is used to alter both cellular function and gene expression. He uses the example of epinephrine release in humans and how it is used in the fight or flight response. Epinephrine causes liver cells to release glucose that is normally stored as glycogen when they receive the signal of epinephrine. They are also able to create different enzymes when receiving this signal. The signal transduction pathway and the importance of CyclicAMP is included.

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All of the images are licensed under creative commons and public domain licensing:
Animal Cell Clip Art, n.d. http://www.clker.com/clipart-animal-c....
DNA, n.d. http://openclipart.org/detail/58543/d....
"File:D-Glucose-Chain-3D-Balls.png." Wikipedia, the Free Encyclopedia. Accessed December 1, 2013. http://en.wikipedia.org/wiki/File:D-g....
"File:Epinephrine-3d-CPK.png." Wikipedia, the Free Encyclopedia. Accessed December 1, 2013. http://en.wikipedia.org/wiki/File:Epi....
"File:Phospholipids Aqueous Solution Structures.svg." Wikipedia, the Free Encyclopedia. Accessed December 1, 2013. http://en.wikipedia.org/wiki/File:Pho....
Häggström, Created and released to the public domain for the sake of free knowledge to all mankind by Mikael. Svg File Which Can Be Dragged and Dropped Together with Other Parts., January 18, 2008. Essential Clinical Anatomy. K.L. Moore & A.M. Agur. Lippincott, 2 ed. 2002. http://commons.wikimedia.org/wiki/Fil....
Holubeck, Barry. English: Joby Ogwyn Making the First Wingsuit Flight next to the North Face of the Matterhorn., July 2009. Own work. http://commons.wikimedia.org/wiki/Fil....


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