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Do the energized electrons at the primary electron acceptor flow to the reaction center?
Yes, energized electrons at the primary electron acceptor flow to the reaction center of photosystem I or II in the process of photosynthesis. This movement of electrons is essential for the conversion of light energy into chemical energy in the form of ATP and NADPH.
What does a plant do with a water?
When the light cascade finally releases the P680 electrons to the primary electron acceptor of the reaction complex those electrons must be replaced. The plant has an enzyme that preforms photolysis on water, splitting it, so that two electrons are fed one at a time into the p680 chlorophylls as replacement electrons for those they have released to the primary electron acceptor.
In chloroplasts an acceptor of electrons lost from chlorophyll and also found in the thylakoid membrane?
The acceptor of electrons lost from chlorophyll in chloroplasts is the protein complex called plastoquinone. It is an essential component of the electron transport chain in the thylakoid membrane, where it transfers electrons to other components in the chain to generate ATP and NADPH during photosynthesis.
What is the primary electron acceptor in Photosystem II?
The primary electron acceptor in Photosystem II is a molecule called plastoquinone. Plastoquinone accepts electrons from chlorophyll after they are excited by light, and transfers them to the cytochrome complex in the thylakoid membrane.
What happens to electrons when pigment in photosystem ll absorb light?
When pigments in Photosystem II absorb light, the energy excites electrons, raising them to a higher energy state. This energized electron is then transferred to a primary electron acceptor, initiating a series of redox reactions in the electron transport chain. This process ultimately leads to the synthesis of ATP and NADPH, which are crucial for the Calvin cycle in photosynthesis. As a result, Photosystem II plays a vital role in converting light energy into chemical energy.
When light energy reaches a certain chlorophyll a molecule an electron is transferred to an Answer?
When light energy reaches a chlorophyll a molecule, it excites an electron, transferring it to a higher energy level. This energized electron is then transferred to a primary electron acceptor, initiating the process of photosynthesis. This transfer is crucial for converting light energy into chemical energy, which is used to synthesize glucose.
Where is the primary role of oxygen in cellular respiration chain located?
The primary role of oxygen in cellular respiration is in the electron transport chain, specifically at the end of the chain where oxygen acts as the final electron acceptor. This process generates a proton gradient that drives ATP production.
What happens after the reaction center receives energy from molecules in the light harvesting complex?
It passes the energy to the reaction center ( a specialized region of photosystem) then the energized electrons leave the reaction centers and are passed to adjacent electron transport chains (ETC)
What is the reaction that complex the part of a photosystem that donates excited electrons?
The reaction involves the transfer of excited electrons from chlorophyll to a nearby primary electron acceptor molecule. This process is vital in photosynthesis as it initiates the flow of electrons through the electron transport chain.
What is the role of oxygen in the electron transport chain of aerobic cellular respiration?
it is the final electron acceptor and then goes on to bond with two hydrogen molecules to make water or H2O The role of oxygen in cellular respiration? It removes electrons from the electron transport chain.
What is a reactant of etc?
In the context of cellular respiration, particularly during the electron transport chain (ETC), the primary reactants are NADH and FADH2, which are produced in earlier stages like glycolysis and the Krebs cycle. These molecules donate electrons to the ETC, facilitating the transfer of energy that ultimately leads to the production of ATP. Additionally, oxygen acts as the final electron acceptor, combining with electrons and protons to form water.
In a protein complex for the light reaction why is energy transferred from pigment molecule to pigment molecule to a special chlorophyll a molecule and eventually to the primary electron acceptor?
Energy is transferred from pigment molecule to pigment molecule in the protein complex through resonance energy transfer, leading to excitation of a special chlorophyll a molecule called P680. This excitation of P680 causes the release of an electron, which is then transferred to the primary electron acceptor, initiating the electron transport chain in photosynthesis.
