A group of three enzymes that decarboxylates pyruvate - creating an acetyl group and carbon dioxide. The acetyl group is then attached to coenzyme A to produce acetyl - CoA - a substrate in the Krebs cycle. In the process - NAD+ is reduced to NADH. T

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1. A group of three enzymes that decarboxylates pyruvate - creating an acetyl group and carbon dioxide. The acetyl group is then attached to coenzyme A to produce acetyl - CoA - a substrate in the Krebs cycle. In the process - NAD+ is reduced to NADH. T