What is the role of ATP in coupled reactions?

What is the role of ATP in coupled reactions?

Cells use ATP to perform work by coupling the exergonic reaction of ATP hydrolysis with endergonic reactions. ATP donates its phosphate group to another molecule via a process known as phosphorylation.

How are coupled reactions important to cell function How is ATP involved in coupled reactions?

By coupling the exergonic reaction of ATP hydrolysis with endergonic reactions, cells use ATP to conduct function. Via a mechanism known as phosphorylation, ATP donates the phosphate group to another molecule.

What is meant by a coupled reaction?

A chemical reaction having a common intermediate in which energy is transfered from one side of the reaction to the other.

How is ATP hydrolysis used to power other cellular reactions?

ATP is able to power cellular processes by transferring a phosphate group to another molecule (a process called phosphorylation). This transfer is carried out by special enzymes that couple the release of energy from ATP to cellular activities that require energy.

What is coupling in ATP synthase?

Chemiosmotic coupling describes the process that links the electron transport chain, which creates an electrochemical gradient across the inner mitochondrial membrane, to the production of ATP through the molecular machine ATP synthase.

Does ATP take part in coupled reactions?

ATP hydrolysis is coupled to a work-requiring (energetically unfavorable) process through formation of an unstable, phosphorylated intermediate, allowing the process to take place in a series of steps that are each energetically favorable.

What is meant by coupled reactions?

How does ATP drive endergonic reactions How does ATP function in coupled reactions?

Hydrolysis of ATP breaks the bond to the third phosphate group, releasing energy. This reaction is coupled to cellular reactions that require energy input.

Can you explain coupled reaction processes and describe the role of ATP in energy coupling and transfer?

ATP provides the energy for both energy-consuming endergonic reactions and energy-releasing exergonic reactions, which require a small input of activation energy. When the chemical bonds within ATP are broken, energy is released and can be harnessed for cellular work.

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