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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

Identify the reaction(s) of the citric acid cycle that involve(s)

a. oxidation and decarboxylation

b. dehydration

c. reduction ofNAD+

Why are there two ATP formed from one molecule of glucose.

What coenzyme picks up hydrogen when a carbon carbon double bond is formed.

Which of the following molecules will produce the most ATP mole?

a. glucose or maltose

b. myristic acid or stearic acid

c. glucose or two acetyl CoA

d. glucose or caprylic acid (C8)

e. citrate or succinate in one term of citric acid cycle

Identify the reaction(s) of the citric acid cycle that involve(s)

a. reduction ofFAD

b. direct phosphate transfer

c. hydration
See all solutions

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