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water donates the electrons when H2O is separated into 2 hydrogen and one oxygen by the water-splitting enzyme in photosystem II. The electrons then enter the electron transport chain, entering a hydrogen pump which uses energy to push hydrogen into the thylocoid. Electrons get recharged in the next chlorophyll almost like a battery, finally they combine with NADP+ and a hydrogen to create NADPH.
btw, two electrons are donated per H2O molecule
What else can I help you with?
What is the role of the plastocyanin?
Plastocyanin is a copper-containing protein that plays a crucial role in photosynthesis by shuttling electrons between photosystem II and photosystem I in the thylakoid membrane of chloroplasts. It helps in the transfer of electrons during the light-dependent reactions of photosynthesis.
NADPH is formed when the electrons acceptor NAPD combines with what?
NADPH is formed when the electron acceptor NADP+ combines with electrons and a hydrogen ion (H+). This reduction reaction takes place during the light reactions of photosynthesis, where energy from sunlight is used to drive the electron transport chain and ultimately produce NADPH.
NADH is produced during?
NADH is produced during glycolysis, the citric acid cycle, and the electron transport chain in cellular respiration. It is a reducing agent that carries high-energy electrons to the electron transport chain to produce ATP.
Where do electrons get their energy in the light reactions.?
.From photons in solar energy
What happens to electrons when pigments in photosystem II absorbs light?
they move through an electron transport chain to photosystem 1
What does the ETC do in plants?
Photosynthetic ETC takes place in thylakoid membranes membranes in chloroplast. Like ETC in mitochondria, light reaction in photosynthesis transport electrons across the photosystems. This yields high energy electron donor, NADPH (unlike in oxidative phosporylation where electrons are transferred from electron donor NADH)
Where do electrons get their energy light reactions?
.From photons in solar energy
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 a pigment molecule that transfers electrons during light reaction?
The pigment molecule that transfers electrons during the light reaction is chlorophyll. Chlorophyll absorbs light energy and transfers electrons to the reaction center of the photosystem, initiating the flow of electrons through the electron transport chain. This process is essential for the conversion of light energy into chemical energy during photosynthesis.
What is water roles in the light reaction of photosynthesis?
Water is essential in the light reaction of photosynthesis as it serves as a source of electrons for photosystem II to replace those lost during electron transport. When water molecules are split in a process known as photolysis, oxygen is released, and electrons are transferred to chlorophyll in the photosystem, which initiates the electron transport chain.
. What molecule acts as an electron donor in the light reactions of photosynthesis?
H2o
What molecule acts as an electron donor the light reactions of photosynthesis?
H2o
What is the waters role in the light reaction of photosynthesis?
Water is split to have its electrons replace the excited electron of chlorophyll, then enters photosystem II.
Which is the is a role of photosynthem 11in the light reaction?
The role of Photosystem II in the light reaction of photosynthesis is to absorb photons of light energy and use it to oxidize water molecules, releasing electrons and protons in the process. These electrons are then passed down an electron transport chain to produce ATP and NADPH for the Calvin cycle.
What is composed of a light-harvesting complex and an electron transport system?
A photosystem is composed of a light-harvesting complex and an electron transport system. The light-harvesting complex captures light energy and transfers it to the reaction center, where electrons are excited and transferred through the electron transport system to generate ATP and NADPH during photosynthesis.
How does an electron microscope differs from a light microscope?
The light microscope use the visible light; the electron microscope use an electrons beam.
What molecule and provide electron is in the light reaction What is the waste product?
In the light reaction of photosynthesis, water (H₂O) is the molecule that provides electrons through a process called photolysis, where water is split into oxygen, protons, and electrons. The waste product generated during this process is oxygen (O₂), which is released into the atmosphere.
