Answer :
Final answer:
Citrate synthase is the enzyme that combines Acetyl CoA and Oxaloacetate to begin the Krebs cycle.
Explanation:
Citrate synthase is responsible for combining Acetyl CoA and Oxaloacetate to start the Krebs cycle. This enzyme catalyzes the formation of a six-carbon citrate molecule from Acetyl CoA and Oxaloacetate, marking the initiation of the cycle.
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