Final answer:
When the pyruvate dehydrogenase complex is not working, acetyl CoA and carbon dioxide are not produced.
Step-by-step explanation:
When the pyruvate dehydrogenase complex is not working, one of the products that are not produced is acetyl CoA. The pyruvate dehydrogenase complex is responsible for converting pyruvate into acetyl CoA, which is a crucial molecule for the Krebs cycle and ATP production. In addition, if the pyruvate dehydrogenase complex is not functioning properly, carbon dioxide would also not be produced as a byproduct of this metabolic pathway.