For its activity, pyruvate decarboxylase requires ______________
(a) Mg^+2
(b) Ca^+2
(c) Na^+
(d) H^+
I had been asked this question in a job interview.
I'm obligated to ask this question of Fates of Pyruvate under Anaerobic Conditions: Fermentation in chapter Principles of Bioenergetics and Glycolysis of Biochemistry