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

A molécula de ATP, trifosfato de adenosina, armazena energia para uso nas células. Consiste em uma base de adenina, um açúcar ribose, e três grupos fosfato, com o último ligado um ao outro através de ligações de fosfoanidrido de alta energia. Esses laços podem ser quebrados através da adição de água, liberando um ou dois grupos fosfato em um processo exergónico denominado hidrólise.Essa reação libera a energia das ligações para uso na célula. Por exemplo, duas proteínas sintetizadas de aminoácidos. Se um grupo fosfato for removido, uma molécula de ADP, adenosina difosfato, permanece, junto com um fosfato inorgânico.ADP pode ser posteriormente ser hidrolisado em AMP, monofosfato de adenosina, pela remoção de um segundo grupo fosfato.

Takeda, Taka-aki, Shiho Miyazaki, Miki Kobayashi, Katsutoshi Nishino, Tomoko Goto, Mayu Matsunaga, Minami Ooi, et al. "A deficiência de zinco causa atraso na depuração de ATP e na geração de adenosina em ratos e modelos de cultura de células." Communications Biology 1, nº 1 (22 de agosto de 2018): 113. [<a href="https://web.archive.org/web/20211019032635/https://doi.org/10.1038/s42003-018-0118-3" target="__blank">Fonte</a>]

hidrólise de atp

Hydrolysis of ATP

As ligações do triptosfato de adenosina (ATP) podem ser quebradas através da adição de água, libertando um ou dois grupos fosfato em um processo exergónico chamado hidrólise. Essa reação liberta a energia nas ligações para uso na célula—por exemplo, para sintetizar proteínas a partir de aminoácidos.
 
 Se um grupo fosfato for removido, uma molécula de ADP—difosfato de adenosina—permanece, juntamente com fosfato inorgânico. O ADP pode ser ainda mais hidrolisado para AMP—monofosfato de adenosina—através da remoção de um segundo grupo fosfato.
 
 <h4>Estrutura do ATP</h4>
 
 O ATP consiste em uma base de adenina, um açúcar ribose, e três grupos fosfato, com os últimos ligados uns aos outros através de ligações fosfoanidrido de alta energia.

Hidrólise de ATP

As ligações do trifosfato de adenosina (ATP) podem ser quebradas através da adição de água, liberando um ou dois grupos fosfato em um processo exergônico ...

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Molecular Biology

Biologia Molecular

Unit 1

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Biochemistry of the Cell

Bioquímica da Célula

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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

molecular biology

JoVE Core Biologia Molecular mostra os processos moleculares da célula através de vídeos de animação claros e concisos. Além disso, nos vídeos de Cientistas em ação, a aplicação desses conceitos é demonstrada por meio de experimentos reais em laboratórios modernos.

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ATP Hydrolysis and Energy Release

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