LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The hydrolysis of ATP is a example of
A
exergonic reaction
B
endergonic reactio
C
Isothermic reaction
D
All of the above
Explanation: 

Detailed explanation-1: -Hydrolysis of the phosphate groups in ATP is especially exergonic, because the resulting inorganic phosphate molecular ion is greatly stabilized by multiple resonance structures, making the products (ADP and Pi) lower in energy than the reactant (ATP).

Detailed explanation-2: -Since ATP hydrolysis releases energy, ATP synthesis must require an input of free energy. The phosphorylation (or condensation of phosphate groups onto AMP) is an endergonic process. By contrast, the hydrolysis of one or two phosphate groups from ATP, a process called dephosphorylation, is exergonic.

Detailed explanation-3: -ATP synthesis is an endergonic reaction because to form a high energy bond, energy is required.

Detailed explanation-4: -The hydrolysis of ATP into ADP (adenosine diphosphate) and Pi (inorganic phosphate) is an exergonic reaction because it results in the release of energy.

There is 1 question to complete.