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HW#10 Chapter 7 Problem 7.26 with feedback - Clinical Application In one of the

ID: 548382 • Letter: H

Question

HW#10 Chapter 7

Problem 7.26 with feedback - Clinical Application

In one of the reactions in the citric acid cycle, which provides energy for ATP synthesis, succinic acid is converted to fumaric acid:

C4H6O4succinic acidC4H4O4fumaric acid+2H

The reaction is accompanied by a coenzyme, flavin adenine dinucleotide (FAD):

FAD+2HFADH2

Part A

Indicate whether succinic acid and FAD are oxidized or reduced.

Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer.

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addition

loss

oxidized

reduced

The reaction of FAD involves the of hydrogen; therefore FAD is .

The reaction of succinic acid involves the of hydrogen; therefore succinic acid is .

Help

Reset

addition

loss

oxidized

reduced

The reaction of FAD involves the of hydrogen; therefore FAD is .

The reaction of succinic acid involves the of hydrogen; therefore succinic acid is .

Explanation / Answer

Since Succinic acid loses hydrogen therefore, it is oxidized while FAD gains hydrogen so it is reduced.

The reaction of FAD involves the addition of hydrogen; therefore FAD is reduced.

The reaction of succinic acid involves the loss of hydrogen; therefore succinic acid is oxidized.