In photosystems, electrons gain their energy primarily from light absorbed by chlorophyll and other pigment molecules. When photons of light strike these pigments, they excite electrons to higher energy levels. This energy transfer initiates a series of electron transport reactions that ultimately convert light energy into chemical energy, facilitating processes such as photosynthesis.
Because electrons are obtained from water. Process is called photolysis
In Photosystem I (PSI), electrons gain energy primarily from light absorbed by chlorophyll molecules and other pigments. When photons are absorbed, they excite electrons to a higher energy state. These high-energy electrons are then transferred through a series of proteins in the electron transport chain, ultimately contributing to the reduction of NADP+ to NADPH, which is used in the Calvin cycle for synthesizing glucose.
In Photosystem I, excited electrons are transferred to the electron carrier molecule ferredoxin. These electrons then reduce NADP+ to form NADPH, an energy-carrying molecule that is essential for the Calvin cycle in photosynthesis. This process occurs in the thylakoid membranes of chloroplasts, playing a crucial role in converting light energy into chemical energy.
Photo electrons. So current due to these photo electrons is named as photo electric current.
Photosystem II (PSII) obtains its replacement electrons from water molecules during the process of photolysis. When water is split into oxygen, protons, and electrons, the electrons released are used to replenish those lost by PSII after it absorbs light energy. This process also generates oxygen as a byproduct, which is released into the atmosphere.
Because electrons are obtained from water. Process is called photolysis
In Photosystem I (PSI), electrons gain energy primarily from light absorbed by chlorophyll molecules and other pigments. When photons are absorbed, they excite electrons to a higher energy state. These high-energy electrons are then transferred through a series of proteins in the electron transport chain, ultimately contributing to the reduction of NADP+ to NADPH, which is used in the Calvin cycle for synthesizing glucose.
In Photosystem I, excited electrons are transferred to the electron carrier molecule ferredoxin. These electrons then reduce NADP+ to form NADPH, an energy-carrying molecule that is essential for the Calvin cycle in photosynthesis. This process occurs in the thylakoid membranes of chloroplasts, playing a crucial role in converting light energy into chemical energy.
Photo electrons. So current due to these photo electrons is named as photo electric current.
Electrons are ejected from a metal surface when it is exposed to light of sufficient energy. This phenomenon is known as the photoelectric effect. The energy of the incident light is absorbed by the electrons, causing them to be emitted from the metal surface.
High energy electrons are electrons that possess a significant amount of kinetic energy. In a given system, these electrons can impact the behavior of particles by colliding with them, transferring energy, and causing ionization or excitation. This can lead to changes in the chemical reactions, radiation emission, and overall dynamics of the system.
ATP
Photosystem II (PSII) obtains its replacement electrons from water molecules during the process of photolysis. When water is split into oxygen, protons, and electrons, the electrons released are used to replenish those lost by PSII after it absorbs light energy. This process also generates oxygen as a byproduct, which is released into the atmosphere.
The term for a cell that converts sunlight into electrical energy by releasing electrons from silicon is a solar cell or photovoltaic cell. This process is known as the photovoltaic effect, where sunlight is converted directly into electricity.
ATP
Electrons can carry energy, such as kinetic energy or electrical energy, as they move within an electrical circuit or in an atomic structure. However, electrons themselves do not produce energy; rather, they can transfer energy from one system to another.
In very general terms, electron transfer is caused by photoexcitation of the pigment molecules in the antenna complex. The chlorophyll and carotenoid molecules in the antenna complex become photoexcited when they absorb any wavelengths of visible light and then transmit resonant energy.