Question

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

Explanation:

Pyruvate dehydrogenase is an enzyme complex that plays a crucial role in cellular respiration. In prokaryotes, which lack membrane - bound organelles like mitochondria, metabolic processes often occur in the cytosol. In eukaryotes, pyruvate dehydrogenase is located in the mitochondrial matrix. This is because the mitochondria are the site of many of the later steps of cellular respiration in eukaryotes.

Answer:

In the cytosol of prokaryotes and the mitochondrial matrix of eukaryotes