Through the process of hydrolysis, cells remove phosphate groups from molecules of ATP to form molecules of ADP. This hydrolytic
reaction results in A. the breaking of low-energy bonds to produce free energy. B. the formation of low-energy bonds to store free energy. C. the formation of high-energy bonds to store free energy. D. the breaking of high-energy bonds to produce free energy.
1 answer:
D
The hydrolytic reaction of ATP into ADP + Pi results in the breaking of high-energy bonds to produce free energy.
Explanation:
ATP has an advantage as an energy molecule in cells. Firstly its bonds are high energy bonds, especially the last Pi -ADP bond that transforms it into an ATP from ADP. This is because the bond increases the Gibbs free energy of the molecule. This same reason makes the molecule unstable hence easily hydrolyzed to release the free energy to perform work in the cell. The reason it is easily broken is that the addition of a Phosphate to ADP increases the repulsive force of the electron clouds and the negative charges of the phosphates that are arranged in geometric sequence in the molecular structure.
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Answer:
Chemical reactions do not involve changes in the chemical bonds that join
atoms in compounds :
<u>False</u>
Explanation:
Chemical reaction are the reaction in which old bonds break and new bonds are formed . The formation of new bond result in formation of new compounds . This happen because new bond are result of linking different atoms by the bond.
For example : Water formation from Oxygen and Hydrogen is a chemical process :
Original(old) bonds are :
H-H bond in H2 and O-O bonds in O2
In H2 = Hydrogen is joined to Hydrogen
IN O2 = Oxygen is joined to oxygen
New Bonds =
O-H bonds in water (H2O)
Oxygen is joined to hydrogen = New Bond formation
Hence,
<u>Chemical reactions do involve changes in the chemical bonds that join </u>
<u>atoms in compounds</u>
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