Where does glycolysis occur in a eukaryotic cell?
In eukaryotic cells, glycolysis and fermentation reactions occur in the cytoplasm. The remaining pathways, starting with pyruvate oxidation, occur in the mitochondria. Most eukaryotic mitochondria can use only oxygen as the terminal electron acceptor for respiration. Yes, pyruvate oxidation happens in the mitochondrial matrix of eukaryotic cells. As soon as pyruvate enters the mitochondrial matrix in eukaryotes, it is oxidatively decarboxylated (with the help of the enzyme Pyruvate DeHydrogenase, PDH) to form Acetyl CoA (which is then free to act as a substrate in the Krebs cycle). Fermentation reactions occur in the cytoplasm of both prokaryotic and eukaryotic cells. In the absence of oxygen, pyruvate does not enter the mitochondria in eukaryotic cells. In the absence of oxygen, pyruvate does not enter the mitochondria in eukaryotic cells. Energy metabolism in eukaryotes vs prokaryotes. In prokaryotic cells, all the metabolic pathways occur in the cytoplasm, except for chemiosmosis and oxidative phosphorylation, which occur on the plasma membrane. NOTE: The cytoplasm refers to the space between the cell membrane and the nucleus, including the intracellular fluid and organelles. The cytosol, however, refers to just the fluid. Although cytoplasm would probably be accepted as a valid answer, cytosol is the terminology you want to use. Glycolysis occurs in the cytosol of the cell. This is true for both eukaryotes and prokaryotes. NOTE: The cytoplasm refers to the space between the cell membrane and the nucl … eus, including the intracellular fluid and organelles. The cytosol, however, refers to just the fluid. Fermentation reactions occur in the cytoplasm of both prokaryotic and eukaryotic cells. In the absence of oxygen, pyruvate does not enter the mitochondria in eukaryotic cells. Energy metabolism in eukaryotes vs prokaryotes. Glycolysis literally means splitting sugars.. Glucose, a six carbon sugar, is split into two molecules of a three carbon sugar. Glycolysis takes place in the cell's cytoplasm. In the process, two molecules of ATP, two molecules of pyruvic acid and two high energy electron carrying molecules of NADH are produced. NOTE: The cytoplasm refers to the space between the cell membrane and the nucleus, including the intracellular fluid and organelles. The cytosol, however, refers to just the fluid. This is true for both eukaryotes and prokaryotes. NOTE: The cytoplasm refers to the space between the cell membrane and the nucleus, including the intracellular fluid and organelles. The cytosol, however, refers to just the fluid.
The cytoplasm