Problem 5 The covalent attachment of an am... [FREE SOLUTION]

Chapter 13: Problem 5

The covalent attachment of an amino acid to a tRNA is an endergonic reaction. In other words, it requires an input of energy for the reaction to proceed. Where does the energy come from to attach amino acids to tRNA molecules?

Short Answer

Expert verified

The energy required to attach an amino acid to a tRNA molecule comes from the hydrolysis of ATP (Adenosine Triphosphate) to AMP.

Step by step solution

Understand the Process of tRNA Charging

The process of attaching an amino acid to tRNA is called 'charging'. Each tRNA molecule is linked to a particular amino acid by an enzyme called aminoacyl-tRNA synthetase in a process that requires the hydrolysis of ATP to AMP.

Understand ATP's Role in Energy Supply

ATP (Adenosine Triphosphate), often called the energy currency of the cell, is a molecule that stores and transfers energy within cells. During the process of charging the tRNA, ATP is hydrolyzed to AMP (adenosine monophosphate), releasing energy that is used to make the bond between the amino acid and the tRNA.

Relate ATP Supply with Amino Acid Attachment Process

In this regard, it is the energy from the hydrolysis of ATP to AMP that is used to attach the amino acid to the tRNA molecule. Thus, ATP is the source of energy for the reaction to take place.

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91影视

The covalent attachment of an amino acid to a tRNA is an endergonic reaction. In other words, it requires an input of energy for the reaction to proceed. Where does the energy come from to attach amino acids to tRNA molecules?

Short Answer

Step by step solution

Understand the Process of tRNA Charging

Understand ATP's Role in Energy Supply

Relate ATP Supply with Amino Acid Attachment Process

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