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What is it when excited electrons are passed along the electron transport chain?
Wiki User
∙ 9y ago
Energy in sunlight transformed to chemical energy
Process of PhotosynthesisThere are two processes of photosynthesis that a plant utilizes to obtain energy from light. One is the Light Dependent Reaction and the other is the Light Independent Reaction. The equation that can be used to summarize the reaction is6CO2+6H2O C6H12O6+6O2.
The first process, the Light Dependent Reaction involves light entering the thylakoid membrane. The Thylakoid Membrane, which is contained inside the Chloroplast, contains the pigments needed to absorb light. Inside the membrane the water splitting enzyme splits H2O into O2 and a Hydrogen ion (H+, e-). When the light strikes the pigments (Chlorophyll, Arytenoids, Phycobilins) inside the thylakoid, the electrons from the Hydrogen ion become excited. These electrons are then carried by the Electron Transport Chain to activate the Carrier Proteins. These Carrier Proteins transport Hydrogen molecules to the Stroma. From here the Hydrogen molecules are used in two different ways, the formation of ATP and NADPH. The first way, the formation of ATP occurs as the result of the Hydrogen ions becoming hypertonic inside the thylakoid, these ions are diffused out through the thylakoid membrane. After diffusion these Hydrogen ions combine with ADP and a phosphate group to produce ATP. The second way, the formation of NADPH, occurs as the molecule NADP binds with a Hydrogen ion to produce NADPH.
The second process, the Light Independent Reaction (The Calvin Cycle) occurs outside of the Thylakoid in the Stroma as 3 CO2molecules splits into 6 3-Carbon based Compounds. These 3-Carbon molecules, with the assistance of 6ATP and 6NADPH are then converted into 6 3-Carbon sugars. Because the ATP and the NADPH expended all of their accumulated energy, they are converted back into 6ADP and 6NADP, respectively. From here one 3-Carbon sugar such as C6H12O6 is released for the organism to use as energy. The remaining 5 3-Carbon sugars are used to rebuild the original 5- Carbon compound that began the cycle. Three of these cycles are needed to produce a polysaccharide such as Glucose.
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∙ 9y ago
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Series of molecules down which excited electrons are passed in a thyakoid membrane?
electron transport chain
Which is the series of molecules through which excited electrons are passed down a thylakoid membrane?
The series of molecules through which excited electrons are passed down a thylakoid membrane during photosynthesis is called the electron transport chain. This chain consists of various protein complexes and molecules, such as plastoquinone, cytochrome b6f complex, and plastocyanin, that work together to transfer electrons and generate a proton gradient used to produce ATP.
What is the series of molecules through which excited electrons are passed down a thyroid membrane called?
electron transport chain
What does the electron transport chain use the high energy electrons for the Krebs cycle for?
The electrons are passed down the electron transport chain for use in ATP production.
What happens when an excited electron is passed to an electron acceptor in a photosystem?
When an excited electron is passed to an electron acceptor in a photosystem, it creates an electron transport chain that helps generate energy in the form of ATP and NADPH through a series of redox reactions. This process is a crucial step in photosynthesis that ultimately contributes to the production of glucose and other organic molecules.
Where does the electron transport chain get high energy electrons that are passed down the chains?
High-energy electrons from NADH and FADH2 are passed along the electron transport chain
Where does the electron transport chain get the high-energy electrons that are passed down the chain?
The high-energy electrons in the electron transport chain are derived from molecules like NADH and FADH2, which are generated during cellular respiration in processes like glycolysis and the citric acid cycle. These molecules donate their electrons to the chain, where they are passed down through a series of protein complexes to generate ATP.
What happens to the energy level as electrons are passed along in electron transport?
They begin to electrolyze, a term used for giving off static charge.
What is passed from protein to protein in the electron transport chain?
Energy is transferred to the chain of proteins in the electron transport. A electron transport chain is a series of compounds that transfer electrons from electron donors to electron acceptors through redox reactions.
Transport chain series of proteins embedded in a membrane along which energized electrons are transported as electrons are passed from molecule energy is released?
The electron transport chain is a series of protein complexes embedded in the inner mitochondrial membrane. As electrons pass through this chain, energy is released and used to pump protons across the membrane, creating an electrochemical gradient. This gradient is then used by ATP synthase to generate ATP, the main energy source for cellular functions.
What are electrons passed from during electron transport chain?
Electrons are passed from one protein complex to another in the electron transport chain, which is a series of protein complexes embedded in the inner mitochondrial membrane. This process generates a proton gradient that drives the production of ATP, the cell's energy currency.
What happens when a photon of light hits photosyestem ll?
When a photon of light hits photosystem II, it excites an electron in the reaction center of the photosystem. This electron is then passed along a series of proteins in the electron transport chain, creating a flow of electrons that drives ATP production through chemiosmosis. Additionally, the photon splitting water molecules into oxygen, protons, and electrons, which is essential for the plant to produce oxygen and obtain electrons to replace the excited ones.
