Oxidative Phosphorylation Energetics

Practice Questions

Biochemistry › Oxidative Phosphorylation Energetics

Questions

Which of the following processes involved in cellular respiration has a positive Gibbs Free energy?

Below are standard reduction potentials of components in carbohydrate metabolism

$\tiny \large \small \small \small \small NAD^++H^++2e^- \rightarrow NADH$ $\tiny \tiny \small \small \Delta V=-.32V$

$\frac{1}{2}O_2+2H^++2e^- \rightarrow H_2O$ $\tiny \small \small \Delta V=.82V$

$NADH+ H^++\frac{1}{2}O_2 \rightarrow NAD^++H_2O$

What is the free energy change for this reaction?

$\Delta G= -nF\Delta V$

In what phase of cellular respiration is not ATP produced?