ATP is used in the cell to transfer energy, Indicate ifthe following statements
ID: 144644 • Letter: A
Question
ATP is used in the cell to transfer energy, Indicate ifthe following statements about ATP are true or false. group bonds Adenine A. When ATP is used in a reaction, the last phosphate is transferred to the substrate. Cick to select) B. Release of the last phosphate from ATP is endergonic. (Cick to select) B C. Once phosphates are released from ATP they can be added back in an endergonic reaction. (Click to select) D. The creatine-phosphate to creatine reaction has a G of-11kcal/mole and thus can be used to generate ATPfrom ADP. Click to select) E. When ATP is hydrolyzed to form ADP, the energy is released into the cytoplasm where enzymes use it to run endergonic reactions. (Click to select)Explanation / Answer
A. Ans. True.
Explaination: There is a greater degree of solvation of Pi, H+, and ADP, relative to ATP. This means that it is easier for ATP to lose one of its phosphate groups.
B. Ans. False
Explaination: [Exergonic (spontaneous)reaction] The entropy, which is the level of disorder, of ADP is greater than that of ATP. Therefore, due to thermodynamics, the reaction spontaneously occurs because it wants to be at a higher entropy level. Also, the Gibbs' free energy of ATP is higher than that of ADP. Naturally, molecules want to be at a lower energy state, so equilibrium is shifted towards ADP.
C. Ans. True
Explaination: [Exergonic (spontaneous)reaction] The entropy, which is the level of disorder, of ADP is greater than that of ATP. Therefore, due to thermodynamics, the reaction spontaneously occurs because it wants to be at a higher entropy level. Also, the Gibbs' free energy of ATP is higher than that of ADP. Naturally, molecules want to be at a lower energy state, so equilibrium is shifted towards ADP.
D) Ans.True
E) Ans. False
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