During cellular respiration, this metabolic process generates both NADH and FADH2 electron carriers: glycolysis fermentation the preparatory reaction the TCA cycle the electron transport chain
Electron Transport Chain
The electron transport chain, also known as the electron transport system, is a group of proteins that transfer electrons through a membrane within mitochondria to create a gradient of protons that drives adenosine triphosphate (ATP)synthesis. The cell uses ATP as an energy source for metabolic processes and cellular functions. ETC involves series of reactions that convert redox energy from NADH (nicotinamide adenine dinucleotide (NAD) + hydrogen (H)) and FADH2(flavin adenine dinucleotide (FAD)) oxidation into proton-motive force(PMF), which is then used to synthesize ATP through conformational changes in the ATP synthase complex, a process known as oxidative phosphorylation.
Metabolism
Picture a campfire. It keeps the body warm on a cold night and provides light. To ensure that the fire keeps burning, fuel needs to be added(pieces of wood in this case). When a small piece is added, the fire burns bright for a bit and then dies down unless more wood is added. But, if too many pieces are placed at a time, the fire escalates and burns for a longer time, without actually burning away all the pieces that have been added. Many of them, especially the larger chunks or damp pieces, remain unburnt.
Cellular Respiration
Cellular respiration is the cellular process involved in the generation of adenosine triphosphate (ATP) molecules from the organic nutritional source obtained from the diet. It is a universal process observed in all types of life forms. The glucose (chemical formula C6H12O6) molecules are the preferred raw material for cell respiration as it possesses a simple structure and is highly efficient in nature.
During
-
glycolysis
-
fermentation
-
the preparatory reaction
-
the TCA cycle
-
the electron transport chain
The correct answer is: The TCA cycle
The TCA cycle, also known as the Krebs cycle or citric acid cycle, is a series of chemical reactions that occur in the mitochondria of eukaryotic cells. It is a key part of cellular respiration, and it is responsible for the generation of NADH and FADH2, two electron carriers that are essential for energy production.
During the TCA cycle, pyruvate, which is produced during glycolysis, is converted to carbon dioxide and water. In the process, NADH and FADH2 are produced. NADH is produced three times, and FADH2 is produced once, per molecule of pyruvate.
The NADH and FADH2 produced during the TCA cycle are then used in the electron transport chain to generate ATP, the cell's energy currency.
Step by step
Solved in 3 steps
