- published: 04 Mar 2013
- views: 1635
Adenosine triphosphate (ATP) is a nucleoside triphosphate used in cells as a coenzyme often called the "molecular unit of currency" of intracellular energy transfer.
ATP transports chemical energy within cells for metabolism. It is one of the end products of photophosphorylation, cellular respiration, and fermentation and used by enzymes and structural proteins in many cellular processes, including biosynthetic reactions, motility, and cell division. One molecule of ATP contains three phosphate groups, and it is produced by a wide variety of enzymes, including ATP synthase, from adenosine diphosphate (ADP) or adenosine monophosphate (AMP) and various phosphate group donors. Substrate-level phosphorylation, oxidative phosphorylation in cellular respiration, and photophosphorylation in photosynthesis are three major mechanisms of ATP biosynthesis.
Metabolic processes that use ATP as an energy source convert it back into its precursors. ATP is therefore continuously recycled in organisms: the human body, which on average contains only 250 grams (8.8 oz) of ATP, turns over its own body weight equivalent in ATP each day.
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Jimmy Wales and Larry Sanger launched Wikipedia on January 15, 2001. Sanger coined its name, a portmanteau of wiki and encyclopedia. Initially only in English, Wikipedia quickly became multilingual as it developed similar versions in other languages, which differ in content and in editing practices. The English Wikipedia is now one of 291 Wikipedia editions and is the largest with 5,081,662 articles (having reached 5,000,000 articles in November 2015). There is a grand total, including all Wikipedias, of over 38 million articles in over 250 different languages. As of February 2014, it had 18 billion page views and nearly 500 million unique visitors each month.
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Paul Andersen explains the structure, function and importance of adenosine triphosphate (ATP). He begins by describing the specific structure of the molecule and its three main parts: adenine, ribose sugar, and phosphate groups. He explains how energy can be stored in ATP and released through hydrolysis to ADP and Pi. He shows how the molecule is created in cellular respiration and photosynthesis. He also explains how it is used throughout the cell. He finishes with a brief discussion of LUCA and how elements of ATP can be found in other parts of the cell (including RNA, DNA). Intro Music Atribution Title: I4dsong_loop_main.wav Artist: CosmicD Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/ Creative Commons Atribution License All images are either Public Domain ...
Neste vídeo gravado em 2013, o Prof. Paulo Jubilut fala sobre as mitocôndrias, teoria endossimbiótica e ATP. ★ Estude no BIOLOGIA TOTAL: http://www.biologiatotal.com.br ★ SNAPCHAT: profjubilut ★ INSTAGRAM: http://instagram.com/paulojubilut/ ★ YOUTUBE: http://bit.ly/ZQarcx ★ FACEBOOK: http://www.facebook.com/biologiajubilut ★ TWITTER: http://twitter.com/Prof_Jubilut
In which Hank does some push ups for science and describes the "economy" of cellular respiration and the various processes whereby our bodies create energy in the form of ATP. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Like CrashCourse on Facebook: http://www.facebook.com/YouTubeCrashCourse Follow CrashCourse on Twitter: http://www.twitter.com/TheCrashCourse Special thanks go to Stafford Fitness (www.staffordfitness.net) for allowing us to shoot the gym scenes in their facilities. This video uses sounds from Freesound.org, a list of which can be found, along with the CITATIONS for this episode, in the Google Document here: http://dft.ba/-25Ad Table of Contents: 1) Cellular Respiration 01:00 2) Adenosine Tr...
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Four total molecules of ATP are formed during glycolysis. Two, however, are used during the glycolysis reactions. So the net gain is 2. Its the same thing for the total Atps made. 36 are made but some are used during the reactions.
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GPL Xuân 2014 - Bán Kết 1 : Azubu Taipei Snipers vs Azubu Taipei Assassins. --------------------------------------------------------------------------------------- Trận đấu bạn đang theo dõi được thực hiện bởi Vietnam Esports TV. Vietnam Esports TV được thực hiện dựa trên nền tảng Internet, nhằm mang cái nhìn cận cảnh nhất về thế giới Liên Minh Huyền Thoại cho các Anh hùng. Để thưởng thức thêm các chương trình thú vị, đặc sắc về eSports, các bạn vui lòng truy cập: http://vetv.vn Facebook: https://www.facebook.com/vnesportstv Liên Minh Huyền Thoại Facebook: https://www.facebook.com/LienMinhHuyenThoai Trang chủ Liên Minh Huyền Thoại Việt Nam: http://LienMinhHuyenThoai.vn
You're dead you fuck
You're dead at my feet
My revenge is almost complete
Your eyes staring
Staring into space
Seeing nothing, no heartbeat
Limp cadaver shut up forever
Life snuffed with no remorse
I will humiliate your corpse
You lay dead I laugh alive
My blood pumps, adrenaline rises
Can't help laughing as I look
At your corpse underfoot
Stepping on your chest
I yank down my pants
My butthole dialating
To humiliate your corpse
You lay there limp contorted
I pinch a loaf for you
Your face is spattered with my shit
A pile of brown on blue
You're dead you fuck
You're dead at my feet
My revenge is now complete
Your eyes staring
Staring into space
As my urine dribbles down your face
Life snuffed with no remorse