[生醫] [生化]-自由能
1. When a mixture of 3-phosphoglycerate and 2-phosphoglycerate is incubated
at 25℃ with phosphoglycerate mutase until equilibrium is reached, the
final mixture contains six times as much 2-phosphoglycerate as
3-phosphoglycerate. Which one of following statements is most nearly correct
? （R=8.315J/mol‧K；T=298K）
A) △G’0 is －1.44 kJ/mol
B) △G’0 is zero
C) △G’0 is ＋12.7 kJ/mol
D) △G’0 is incalculably large and positive
E) △G’0 cannot be calculated from the information given
2. All of the following contribute to the large, negative, free-energy change
upon hydrolysis of "high-energy" compounds except：
A) electrostaatic repulsion in the reactant
B) low activation energy of forward reaction
C) stabilization of products by extra resonance forms
D) stabilization of products by ionization
E) stabilization of products by solvation
以上兩題答案為 1.A 2.B 不過我不知道為甚麼
有沒有人可以稍微解釋一下呢? 謝謝大家~~
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※ 編輯: lorandy 來自: 114.36.144.148 (11/10 20:35)
※ 編輯: lorandy 來自: 114.36.144.148 (11/10 20:36)
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