Iyini i-mitochondrial matrix?
Kumitochondrion, i-matrix yindawo engaphakathi kolwelwesi lwangaphakathi. Igama elithi "matrix" lisuselwa eqinisweni lokuthi lesi sikhala sinamafutha, uma siqhathaniswa ne-cytoplasm enamanzi. I-mitochondrial matrix iqukethe i-DNA ye-mitochondrial, ama-ribosome, ama-enzyme ancibilikayo, ama-molecule amancane e-organic, ama-nucleotide cofactors, nama-ion angahlelekile. Ama - enzyme asemathrix asiza ekuphenduleni okubangela ukukhiqizwa kwe - ATP, njengokujikeleza kwe - citric acid, i - oxidative phosphorylation, i - oxidation ye - pyruvate, ne - beta oxidation yama - fatty acid.  Ukwakheka kwe-matrix okusekelwe ezakhiweni zayo nokuqukethwe kukhiqiza indawo evumela izindlela ze-anabolic ne-catabolic ukuba ziqhubeke kahle. I-electron transport chain kanye nama-enzyme ku-matrix adlala indima enkulu kumjikelezo we-citric acid kanye ne-oxidative phosphorylation. Umjikelezo we-citric acid ukhiqiza i-NADH ne-FADH2 nge-oxidation ezoncishiswa nge-phosphorylation oxidative ukukhiqiza i-ATP.  Isikhala se-cytosol, esiphakathi kwe-membrane, sinomthamo wamanzi ka-3.8 μL/mg wamaprotheni, kuyilapho i-mitochondrial matrix ingu-0.8 μL/mg wamaprotheni. Akwaziwa ukuthi i-mitochondria igcina kanjani ibhalansi ye-osmotic ngaphesheya kwe-mitochondrial membrane yangaphakathi, yize i-membrane iqukethe ama-aquaporins okukholelwa ukuthi ayizindlela zokuthutha amanzi ezilawulwayo. I-mitochondrial matrix ine-pH engaba ngu-7.8, ephakeme kune-pH yesikhala se-intermembrane semitochondria, esingu-7.0<unk>7.4. I-Mitochondrial DNA yatholakala ngo-1963 nguNash noMargit. I-DNA eyisiyingi enezinhlamvu eziphindwe kabili iyodwa kuya kweziningi ikhona ku-mitochondrial matrix. I-DNA ye-mitochondrial ingamaphesenti angu-1 e-DNA ephelele yeseli. Iqukethe i-guanine ne-cytosine eningi. I-mitochondria yezilwane ezincelisayo inama-ribosome angu-55s.