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Chapter 15: Q12P. (page 521)

If a reaction has a 鈭咷掳藞 value of at least -30.5kJ mol-鹿, sufficient to drive the synthesis of ATP (鈭咷掳藞=30.5kJ mol-鹿), can it still drive the synthesis of ATP in vivo when its 鈭咷 is only -10kJ mol-鹿? Explain.

Short Answer

Expert verified

In both 鈭咷掳藞 and 鈭咷 decreases at the same constituent, then the process to drive the ATP synthesis continues in vivo condition.

Step by step solution

01

Introduction

Gibb's free energy describes how much of a system's total energy is used in a chemical reaction. 鈭咷 represents the shift in free energy. 鈭咷 is anticipated by temperature and enthalpy changes. The typical free energy change is symbolised by "鈭咷".

02

Possible to drive the ATP synthesis at in vivo condition

The given reaction has (鈭咷掳藞) value of -30.5kJmol-鹿.

To drive the synthesis of ATP (鈭咷掳藞) value is 30.5kJmol-鹿.

鈭咷 value is only -10kJmol-鹿.

The (鈭咷掳藞) value drops when the value of 鈭咷 lowers in thein vivostate. ATP production is a phosphorylation process that occurs at the substrate level. 鈭咷 is required for the overall reaction To provide the 鈭咷 for ATP production, the value must be significantly lower than the required value. The free energy shift that drives ATP synthesis is connected to the standard free energy.

03

Interpretation

Thus, if both (鈭咷掳藞) and 鈭咷 decreases at the same constituent, then the process to drive the ATP synthesis continues at in vivo condition.

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Most popular questions from this chapter

Draw the enediolate intermediate of the ribulose-5-phosphate isomerase reaction (Ru5P 鈫� R5P).

Write the net equation for the pentose phosphate pathway.

Why is it possible for the 鈭咷 values in Table 15-1 to differ from the 鈭咷掳藞 values?

Describe the lengths of the products of the transketolase reaction when the two substrates are both five-carbon sugars.

Arsenate (AsO鈧劼斥伝), a structural analog of phosphate, can act as a substrate for any reaction in which phosphate is a substrate. Arsenate esters, unlike phosphate esters, are kinetically as well as thermodynamically unstable and hydrolyze almost instantaneously. Write a balanced overall equation for the conversion of glucose to pyruvate in the presence of ATP, ADP, NAD鈦�, and either (a) phosphate or (b) arsenate. (c) Why is arsenate a poison?
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