Mitochondria are membrane-bound cell organelle present in most eukaryotic cells. It is called the powerhouse of a cell as most of the ATP... View Article
Mitochondria are the site of cellular respiration in aerobic organisms. Plants also need energy to perform various metabolic processes.... View Article
Krebs cycle takes place in the mitochondrial matrix. It is the main process by which complete oxidation of carbohydrates, fatty acids and amino... View Article
Ribosomes are the site of protein synthesis. Mitochondrial ribosomes synthesise proteins in the mitochondria, which are regulated by genes... View Article
Human RBCs do not possess mitochondria. They are also devoid of a nucleus to give more space to haemoglobin, the respiratory pigment, which... View Article
The human egg cell or ovum contains a large amount of mitochondria. It contains around 100,000 to 600,000 mitochondria. Further reading:... View Article
Mitochondria contain one single chromosome. It contains 37 genes, that code for 13 proteins. Most of the species have circular mtDNA, few species... View Article
Mitochondria are inherited exclusively from the mother to offspring. The ovum contains numerous mitochondria. The inheritance of mitochondria is... View Article
Ageing is associated with the decline in the function of mitochondrial enzymes and respiratory chain dysfunction. It is associated with increased... View Article
Pyruvate is produced in the cytosol by glycolysis. It enters mitochondria through a transport protein called pyruvate translocase. Pyruvate is... View Article
Energy is produced in the mitochondria in the form of ATP. Energy from the oxidation of high energy compounds NADH and FADH2 produced in the... View Article
Mitochondria generate ATP by oxidative phosphorylation. The electron transport system, present in the inner mitochondrial membrane, transfers... View Article
Mitochondria divide by the similar process as prokaryotic binary fission as they have originated from the endosymbiosis of bacteria. Mitochondria... View Article
Acetyl CoA can not cross the mitochondrial membrane. It is produced in the mitochondria by oxidative decarboxylation of pyruvate or oxidation of... View Article
Total 4 CO2 molecules are released in the TCA cycle per glucose molecule, i.e. in the two rounds of the cycle. Decarboxylation occurs at two... View Article
Intermediate of the TCA cycle are citrate, isocitrate, α-ketoglutarate, succinate, fumarate, malate, and oxaloacetate. Further reading:... View Article
Glucose is broken down into two 3-carbon containing pyruvate molecules, which are linked to the TCA cycle by forming acetyl CoA through oxidative... View Article
Glycolysis and the TCA cycle are linked by the linking reaction catalysed by pyruvate dehydrogenase complex. Pyruvic acid produced at the end of... View Article
