Question

question
where is pyruvate dehydrogenase located?
answer
in the mitochondrial matrix of eukaryotes but not in prokaryotes
in the cytosol of both prokaryotes and eukaryotes
in the cytosol of prokaryotes and the mitochondrial matrix of eukaryotes
in the cytosol of prokaryotes and the intermembrane space in eukaryotes
i dont know yet

Explanation:

Pyruvate dehydrogenase is an enzyme complex that plays a crucial role in the link reaction between glycolysis and the citric acid cycle. Prokaryotes lack mitochondria, so pyruvate dehydrogenase is located in the cytosol. Eukaryotes have mitochondria, and pyruvate dehydrogenase is located in the mitochondrial matrix.

Answer:

In the cytosol of prokaryotes and the mitochondrial matrix of eukaryotes