Where does the citric acid cycle occur in prokaryotes?
The citric acid cycle occurs in the cytoplits of bacteria and archaea. It is divided into three distinct sections: the pyruvate (Pyr) section, the isocitrate (Iso) section, and the α-ketoglutarate (α-KG) section. The Pyr section consists of the oxidative decarboxylation of two molecules of pyruvate to form two molecules of acetyl-CoA, which are the products of
Where does the citric acid cycle occur in cytochrome oxidase?
The citric acid cycle happens in the mitochondrial matrix in eukaryotes. However, in some bacteria, the citric acid cycle can occur within the enzyme cytochrome c oxidase. The purpose of this unusual organization is so that the four electrons that are produced by this reaction can be transferred to oxygen. In this way, the electrons are used to create energy in the form of adenosine triphosphate (ATP). Bacteria that contain this pathway are called aerobic anaer
Where does the citric acid cycle occur in eukaryotic cells?
All eukaryotes possess a citric acid cycle that is similar to that of bacteria. However, the metabolic pathways of the TCA cycle in eukaryotes are compartmentalized into distinct organelles known as the mitochondria, the peroxisomes, and the cytosol (Kraft, 2006). In bacteria, the TCA cycle occurs in the cytosol, while the TCA cycle in eukarticulates occurs in the mitochondria and peroxis
Where does the citric acid cycle occur in prokaryotic cells?
The citric acid cycle occurs in the cytoplasm of prokaryotes. This means that the reactions occur within the cell and do not need to extract energy from their surroundings. The first step of the citric acid cycle is the conversion of acetyl-CoA to oxaloacetate. This reaction is catalysed by the enzyme aconitase. This reaction is the rate-limiting step in the citric acid cycle. The reaction is fast enough to occur in the
Where does the cit
The citric acid cycle is often called the Krebs cycle after its discoverer, German biochemist Otto Heinrich Krebs. This cycle occurs in the cytoplasm of bacteria and archaea and is distinct from the TCA cycle that occurs in plant and animal cells. In bacteria, the citric acid cycle occurs in the cytoplasm and the enzymes that catalyze this reaction are soluble. The reason why bacteria do not use the TCA cycle as the main energy source
