What are electron transport chain and oxidative phosphorylation processes?
Oxidative phosphorylation is a process involving a flow of electrons through the electron transport chain, a series of proteins and electron carriers within the mitochondrial membrane. This flow of electrons allows the electron transport chain to pump protons to one side of the mitochondrial membrane.
What are the steps of oxidative phosphorylation?
The three major steps in oxidative phosphorylation are (a) oxidation-reduction reactions involving electron transfers between specialized proteins embedded in the inner mitochondrial membrane; (b) the generation of a proton (H+) gradient across the inner mitochondrial membrane (which occurs simultaneously with step (a …
What is the order of the electron transport chain?
The ETC proteins in a general order are complex I, complex II, coenzyme Q, complex III, cytochrome C, and complex IV. Coenzyme Q, also known as ubiquinone (CoQ), is made up of quinone and a hydrophobic tail. Its purpose is to function as an electron carrier and transfer electrons to complex III.
What are the steps of oxidative respiration?
The stages of cellular respiration include glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation.
What is oxidative phosphorylation Class 10?
Oxidative phosphorylation is the final step in cellular respiration. It occurs in the mitochondria. It is linked to a process known as electron transport chain. The electrons are transferred from one member of the transport chain to another through a series of redox reactions.
Which of the following steps of the electron transport chain directly drives ADP phosphorylation?
Which of the following steps of the electron transport chain directly drives ADP phosphorylation? Proton flow through ATP synthase along a concentration gradient.
What are the three steps in the mitochondria?
In general, cellular respiration can be divided into four stages: Glycolysis, which does not require oxygen and occurs in the mitochondria of all cells, and the three stages of aerobic respiration, all of which occur in mitochondria: the bridge (or transition) reaction, the Krebs cycle and the electron transport chain …
Is the electron transport chain oxidative phosphorylation?
The electron transport chain is a series of proteins and organic molecules found in the inner membrane of the mitochondria. Electrons are passed from one member of the transport chain to another in a series of redox reactions. Together, the electron transport chain and chemiosmosis make up oxidative phosphorylation.
What is oxidative phosphorylation class11?
Complete answer: Metabolic pathway in which cells use enzymes to oxidize nutrients, thereby releasing the chemical energy stored within in order to produce adenosine triphosphate (ATP) is called oxidative phosphorylation. This process takes place inside the mitochondria of the cell.
What goes on in the electron transport chain?
The electron transport chain involves a series of redox reactions that relies on protein complexes to transfer electrons from a donor molecule to an acceptor molecule. As a result of these reactions, the proton gradient is produced, enabling mechanical work to be converted into chemical energy, allowing ATP synthesis.
What do NADH and FADH2 deliver to electron transfer chains?
The role of NADH and FADH2 is to donate electrons to the electron transport chain and to act as an electron carrier, which carries electrons released from different metabolic pathways to the final process of energy production, i.e., the electron transport chain.
How would you describe the electron transport chain?
Electron transport chain. Electron Transport Chain Definition. The electron transport chain is a cluster of proteins that transfer electrons through a membrane to create a gradient of protons that creates ATP (adenosine triphosphate) or energy that is needed in metabolic processes for cellular function.
What are the end products of the electron transport system?
The end products of the electron transport chain are water and ATP. A number of intermediate compounds of the citric acid cycle can be diverted into the anabolism of other biochemical molecules, such as nonessential amino acids, sugars, and lipids. These same molecules can serve as energy sources for the glucose pathways.