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 .
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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 .
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.
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