In Step 2 of the Citric Acid Cycle, the Enzyme

question 49

Multiple Choice

In step 2 of the citric acid cycle, the enzyme aconitase generates isocitrate from citrate.Which of the following statements about this reaction is TRUE?

• A)There is a substantial free-energy difference between the reactants and products of this reaction.
• B)The unbonded electrons from hydroxide ions provide energy for this reaction.
• C)The aconitase enzyme functions as a mutase in this reaction.
• D)The reaction sequence first generates one molecule of water and then consumes one molecule of water.

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