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Chapter 18: Q. 18.48 (page 644)

How is FADH2oxidized in electron transport?

Short Answer

Expert verified

The FADH2get oxidized in electron transport by interacting with CoQin ComplexII

Step by step solution

01

Given information

We need to find the way by whichFADH2get oxidized while electron transfer

02

Explanation

When FADH2interacts with CoQin Complex II, it is immediately oxidized. CoQabsorbs electrons and hydrogen ions directly from FADH2, which was formed in the citric acid cycle after the production of fumarate from succinate via oxidation by succinate dehydrogenase. After absorbing electrons and hydrogen ions from FADH2, CoQis reduced to CoQH2, while FADH2is oxidized to FADafter releasing electrons and hydrogen ions. Later oxidative pathways,FAD will be employed in other oxidative reactions.

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Most popular questions from this chapter

Arachidic acid is a C20fatty acid found in peanut and fish oils.

a. How many cycles of 尾 oxidation are needed for the complete oxidation of arachidic acid?
b. How many acetyl CoA are produced from the complete oxidation of arachidic acid?
c. Calculate the total ATP yield from the complete 尾oxidation of arachidic acid by completing the following:

What is the ATP energy yield associated with each of the following?

a. NADH鈫�NAD+

b.glucose鈫�2pyruvate

c.2pyruvate鈫�2acetylCoA+2CO2

d.acetylCoA鈫�2CO2

In the chemiosmotic model, how is energy provided to synthesize ATP ?(18.6)

What is the three carbon end product of glycolysis.

Write the overall equation for the conversion of pyruvate to acetylCoA?
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