<P> In the mitochondrion , the matrix is the space within the inner membrane . The word `` matrix '' stems from the fact that this space is viscous , compared to the relatively aqueous cytoplasm . The mitochondrial matrix contains the mitochondria 's DNA , ribosomes , soluble enzymes , small organic molecules , nucleotide cofactors , and inorganic ions . The enzymes in the matrix facilitate reactions responsible for the production of ATP , such as the citric acid cycle , oxidative phosphorylation , oxidation of pyruvate and the beta oxidation of fatty acids . </P>
<P> In the mitochondrion , the matrix is the space within the inner membrane . The word `` matrix '' stems from the fact that this space is viscous , compared to the relatively aqueous cytoplasm . The mitochondrial matrix contains the mitochondria 's DNA , ribosomes , soluble enzymes , small organic molecules , nucleotide cofactors , and inorganic ions . The enzymes in the matrix facilitate reactions responsible for the production of ATP , such as the citric acid cycle , oxidative phosphorylation , oxidation of pyruvate and the beta oxidation of fatty acids . </P>
where is the matrix located in the mitochondria
where is the matrix located in the mitochondria
within the inner membrane
within the inner membrane