OBJECTIVE LIFE SCIENCE
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Hydrolysis of 1 mole of ATP into ADP releases ____ kilocalories of energy
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6.5
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7.5
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8.5
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9.5
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Explanation:
Detailed explanation-1: -The hydrolysis of one molecule of ATP to Adenosine Diphosphate ADP and inorganic phosphate releases 7.3 kcal /mol of energy.
Detailed explanation-2: -The hydrolysis of 1M of ATP into ADP and inorganic phosphate, releases −7.3 kcal/mol of energy. The energy released in the living cell is almost double the value in standard conditions, it is equal to −14 kcal/mol.
Detailed explanation-3: -The calculated ∆G for the hydrolysis of one ATP mole into ADP and Pi is −7.3 kcal/mole (−30.5 kJ/mol).
Detailed explanation-4: -These differences between intracellular concentrations and those of the standard state favor ATP hydrolysis, so for ATP hydrolysis within a cell, G is approximately-12 kcal/mol.
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