Concept explainers
(a)
To determine: The equilibrium constant for the reaction at 25°C.
Introduction:
The citric acid cycle is a series of various types of
(a)
Explanation of Solution
Explanation:
The conversion of malate into oxaloacetate can be written in equation form as:
Standard free energy change or
Here,
Substitute the value in equation (1):
To calculate the value of
Conclusion:
The equilibrium constant for the conversion of malate into oxaloacetate at standard room temperature is
(b)
To determine: Oxaloacetate concentration at pH 7.
Introduction:
At equilibrium, the concentration of the reactant and the product are same. It is the state of balance where all the forces are canceled out by equal and opposing force. Equilibrium of the substances is dependent on the concentration of reactants and products.
(b)
Explanation of Solution
Explanation:
At pH 7,
Here,
Substitute the values in equation (2):
Conclusion:
The concentration of oxaloacetate in pH 7 is
(c)
To determine: The number of oxaloacetate molecules in the rat liver mitochondrion.
Introduction:
Total number of molecules can be obtained by multiplying the number of moles and the
(c)
Explanation of Solution
Explanation:
Given,
Diameter of mitochondrion 2.0 µm, radius of mitochondrion 1.0 µm, [Oxaloacetate] is
Here, r is the radius of mitochondria which is 1 µm.
Constant
Substitute the values in equation (3).
1L of solution contains
Avogadro number is the number of particles in per unit volume, the value of Avogadro number is constant
Substitute the values in equation (4).
Conclusion:
The number of molecules of oxaloacetate in a single rat liver mitochondrion is
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