All of the following statements concerning vitamin B2 functions are true EXCEPT:

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All of the following statements concerning vitamin B2 functions are true EXCEPT:

a) Essential constituent of flavoproteins, flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD)

b) Plays key roles in hydrogen transfer reactions associated with glycolysis, TCA cycle and oxidative phosphorylation

c) An essential coenzyme for oxidative decarboxylate of alpha-keto acids, most important being conversion of pyruvate to acetyl coenzyme A

d) Deficiency symptoms are cheilitis, cheilosis and angular stomatitis

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