Name: atp hydrolysis and energy release
Uploaded: 2020-11-23T11:47:33.000Z
Duration: 1 min 8 s
Channel: JoVE

Das Molekül Adenosintriphosphat, ATP, speichert Energie zur Verwendung in Zellen.
 Es besteht aus einer Adeninbase, einem Ribosezucker und drei Phosphatgruppen, die durch energiereiche Phosphoanhydridbindungen aneinander gebunden sind.
 Diese Bindungen können durch Zugabe von Wasser, das eine oder zwei Phosphatgruppen freisetzt, in einem als Hydrolyse bezeichneten exergonischen Prozess aufgebrochen werden.
 Diese Aktion setzt die Energie in den Bindungen frei, damit diese in der Zelle verwendet werden kann, zum Beispiel um Proteine aus Aminosäuren zu synthetisieren.
 Wenn eine Phosphatgruppe entfernt wird, verbleibt ein Molekül eines ADP, Adenosindiphosphat, zusammen mit einem anorganischen Phosphat.
 ADP kann durch Entfernen einer zweiten Phosphatgruppe weiter zu AMP, Adenosinmonophosphat, hydrolysiert werden.

Takeda, Taka-aki, Shiho Miyazaki, Miki Kobayashi, Katsutoshi Nishino, Tomoko Goto, Mayu Matsunaga, Minami Ooi et al. "Zinkmangel verursacht eine verzögerte ATP-Clearance und Adenosinbildung bei Ratten und Zellkulturmodellen." Communications Biology 1, Nr. 1 (22. August 2018): 113. [<a href="https://web.archive.org/web/20211019032635/https://doi.org/10.1038/s42003-018-0118-3" target="__blank">Quelltext</a>]

hydrolyse von atp

Hydrolysis of ATP

Die Bindungen von Adenosintriphosphat (ATP) können durch die Zugabe von Wasser aufgebrochen werden. Dabei werden eine oder zwei Phosphatgruppen in einem exergonen Prozess, der Hydrolyse, freigesetzt. Diese Reaktion setzt die Energie in den Bindungen frei, um sie für die Zelle nutzbar zu machen. Mit Hilfe des ATP können beispielsweise Proteine aus Aminosäuren synthetisiert werden.
 
 Wenn eine Phosphatgruppe entfernt wird, bleibt ein ADP Molekül (Adenosindiphosphat) und ein anorganischer Phosphatrest übrig. ADP kann weiter zu AMP (Adenosinmonophosphat) hydrolysiert werden, indem eine zweite Phosphatgruppe entfernt wird.
 
 <h4>Aufbau von ATP</h4>
 
 ATP besteht aus einer Adeninbase, einem Ribosezucker und drei Phosphatgruppen, wobei letztere durch energiereiche Phosphoranhydridbindungen verbunden sind.

Hydrolyse von ATP

Die Bindungen von Adenosintriphosphat (ATP) können durch Zugabe von Wasser aufgebrochen werden, wobei in einem exergonischen Prozess eine oder zwei Phosphatgruppen freigesetzt werden ...

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atp hydrolysis and energy release

ATP hydrolysis is a key chemical reaction in cells that releases energy. ATP, or adenosine triphosphate, is the molecule cells use to store and transfer energy for many processes.

During hydrolysis, water breaks the bond in ATP’s terminal phosphate group. This reaction converts ATP into ADP, or adenosine diphosphate, and inorganic phosphate. The released energy can then be used to drive cellular work.

High school biology students often see ATP hydrolysis as part of energy transfer in living systems. It helps explain how cells power movement, transport, and other activities that require energy.

ATP Hydrolysis and Energy Release

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hydrolysis of atp

ATP hydrolysis is a key chemical reaction in cells that releases energy. ATP, or adenosine triphosphate, is the molecule cells use to store and transfer energy for many processes. During hydrolysis, water breaks the bond in ATP’s terminal phosphate group. This reaction converts ATP into ADP, or adenosine diphosphate, and inorganic phosphate. The released energy can then be used to drive cellular work. High school biology students often see ATP hydrolysis as part of energy transfer in living...

key terms and concepts

Learn how ATP hydrolysis uses water to break a phosphate bond, forming ADP and inorganic phosphate while releasing energy for cell work.

ATP Hydrolysis and Energy Release | JoVE K12

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ATP Hydrolysis and Energy Release

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