Place the equations on the appropriate side of each step to show the sequence of reactions by which A. niger can synthesize citric acid from sucrose.
sucrose + H₂O $\longrightarrow$ glucose + fructose
glucose + 2P<sub>i</sub> + 2 ADP + 2 NAD<sup>+</sup> $\longrightarrow$ 2 pyruvate + 2 ATP + 2 NADH + 2 H<sup>+</sup> + 2 H₂O
2 pyruvate + 2 CO₂ + 2 ATP + 2H₂O $\longrightarrow$ 2 pyruvate + 2 ATP + 2 NADH + 2H<sup>+</sup> + 2H₂O
2 pyruvate + 2 NAD<sup>+</sup> + 2 CoA $\longrightarrow$ 2 acetyl-CoA + 2 NADH + 2 H<sup>+</sup> + 2 CO₂
fructose + 2 P<sub>i</sub> + 2 ADP + NAD<sup>+</sup> $\longrightarrow$ 2 oxaloacetate + 2 ADP + 2P<sub>i</sub> + 4H<sup>+</sup>
2 acetyl-CoA + 2 oxaloacetate + 2 H₂O $\longrightarrow$ 2 citrate + 2 CoA
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