Source of energy of ETP in mitochondria is the chemical energy derived from redox reactions.Д®TC in chloroplasts utilizes light energy.Д®TC in mitochondria takes place in the cristae of mitochondria.Д®TC in chloroplasts takes place in the thylakoid membrane of the chloroplast. Photo-phosphorylation occurs in ETC of chloroplasts. Oxidative phosphorylation occurs in ETC of Mitochondria. The electron transport chain which occurs in the inner membrane of the mitochondria is known as oxidative phosphorylation or Electron Transport Chain in Mitochondria.Д®lectron transport chain which takes place inside the chloroplast is known as photophosphorylation or the Electron Transport Chain in Chloroplast. What is the Difference Between Electron Transport Chain in Mitochondria and Chloroplasts?Д®TC in Mitochondria vs ETC in Chloroplasts

In both, 3 ATP molecules are synthesized by 2 protons.

ATP synthase is utilized in ETC by both mitochondria and chloroplast.

What are the Similarities Between ETC in Mitochondria and Chloroplasts? The flow of electrons from one acceptor to the next will create an electron gradient which is a proton motive force which is utilized in synthesizing ATP.

The electrons from photosystem II will be transferred to photosystem I where a similar process will take place. The deficit of electrons in the photosystem will be provided by lysis of another water molecule. Unlike cyclic pathway, the two electrons will not return to the photosystem. Two electrons are boosted from the photosystem which is accepted by the primary electron acceptor. The chlorophyll pigments present in the photosystem absorb light energy in the form of photons and transfer it to a core molecule. Initially, a water molecule is lyzed to produce 2H + + 1/2O 2 + 2e вЂ“. In noncyclic photophosphorylation, the involvement of two photosystems occurs. Cyclic photophosphorylation does not produce oxygen or NADPH. ATP synthase is used as the enzyme during this process. The movement of the electrons induces a proton motive force which involves in the pumping of H + ions across the membranes. This energy is passed from one electron acceptor to the next electron acceptor in an electron gradient which is finally accepted by a lower energy electron acceptor. This leads to the excitation and eventually the release of a high energy electron. When sunlight falls on the photosystem light absorbing molecules will capture the light and pass it to a special chlorophyll molecule in the photosystem. These are synthesized during earlier cellular respiratory stages which include glycolysis and TCA cycle.ДЇigure 02: Electron Transport Chain in ChloroplastД¬yclic photophosphorylation occurs basically on the thylakoid membrane where the flow of electrons is initiated from a pigment complex known as photosystem I.

Electrons that enter the electron transport chain is derived from FADH2 and NADH. The electron gradient created during this movement derives energy which is utilized in pumping H + ions across the inner membrane from the matrix into the intermembrane space. During the movement of electrons through the electron transport chain, they move from higher energy levels to lower energy levels. The electron transport chain consists of many different proteins and organic molecules which include different complexes namely, complex I, II, III, IV and ATP synthase complex. It is known as oxidative phosphorylation due to the energy source: that is the redox reactions which drives the electron transport chain. This creates a proton gradient which causes the synthesis of ATP.

The electron transport chain which occurs in the inner membrane of the mitochondria is known as oxidative phosphorylation where the electrons are transported across the inner membrane of the mitochondria with the involvement of different complexes. Summary What is Electron Transport Chain in Mitochondria? Side by Side Comparison вЂ“ Electron Transport Chain in Mitochondria vs Chloroplasts in Tabular FormД¦. Similarities Between ETC in Mitochondria and ChloroplastsДҐ. What is Electron Transport Chain in ChloroplastsД¤. What is Electron Transport Chain in MitochondriaДЈ. This is the key difference between Electron Transport Chain (ETC) in Mitochondria and Chloroplast. In contrast, in the chloroplast this process is called вЂ photo-phosphorylationвЂ™ since it utilizes light energy.

Electron transport chain (ETC), which takes place in the mitochondria is called вЂ oxidative phosphorylation,вЂ™ since the process utilizes chemical energy from redox reactions. This causes the formation of a proton gradient by which energy is utilized in synthesizing ATP with the assistance of the enzyme ATP synthase. Both processes involve the transportation of electrons which create an electron gradient. Key Difference вЂ“ Electron Transport Chain in Mitochondria vs ChloroplastsД¬ellular respiration and photosynthesis are two extremely important processes which assist living organisms in the biosphere.

Parallels transport