CELL RESPIRATION
ATP ADENOSINE TRIPHOSPHATE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A phosphate group is added to ADP and energy is stored.
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A phosphate group is added to ADP and energy is released.
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A phosphate group is removed from ATP and energy is released.
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A phosphate group is added to ATP and energy is stored.
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Detailed explanation-1: -When one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and ATP is converted to adenosine diphosphate (ADP ). Likewise, energy is also released when a phosphate is removed from ADP to form adenosine monophosphate (AMP).
Detailed explanation-2: -The bonds of adenosine triphosphate (ATP) can be broken through the addition of water, releasing one or two phosphate groups in an exergonic process called hydrolysis. This reaction liberates the energy in the bonds for use in the cell-for instance, to synthesize proteins from amino acids.
Detailed explanation-3: -The hydrolysis of one ATP molecule releases 7.3 kcal/mol of energy (∆G = −7.3 kcal/mol of energy).
Detailed explanation-4: -Hydrolysis of ATP Removing or adding one phosphate group interconverts ATP to ADP or ADP to AMP. Breaking one phosphoanhydride bond releases 7.3 kcal/mol of energy.