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A photosynthetic reaction center (or photosynthetic reaction center) is a complex of several proteins, pigments and other co-factors assembled together to execute the primary energy conversion reactions of photosynthesis. Molecular excitations, either originating directly from sunlight or transferred as excitation energy via light-harvesting antenna systems, give rise to electron transfer reactions along a series of protein-bound co-factors. These co-factors are light-absorbing molecules (also named chromophores orpigments) such as chlorophyll and phaeophytin, as well as quinones. The energy of thephoton is used to promote an electron to a higher molecular energy level of a pigment. The free energy created is then used to reduce a chain of nearby electron acceptors, which have subsequently higher redox-potentials. These electron transfer steps are the initial phase of a series of energy conversion reactions, ultimately resulting in the production of chemical energy during photosynthesis.
The complex of proteins and pigments assembled together to carry out the primary energy conversion reactions of photosynthesis is known as the reaction center.
What else can I help you with?
What is photosystems?
The group of proteins and pigments that transfers electrons to reaction center
What is the reaction when chlorophyll donates excited electrons?
the reaction center.
What pigment molecules absorb a photon and pass the energy to the reaction-center complex?
chlorophyll
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 main role of pigment molecules within the antenna or light harvesting complex?
The light-harvesting (or antenna) complex of plants is an array of protein and chlorophyll molecules embedded in the thylakoid membrane which transfer light energy to one chlorophyll a molecule at the reaction center of a photosystem.
Does the center of the reaction in the dark reaction split the water?
False
What type of chlorophyll does the reaction center contain?
The reaction center contains special chlorophyll called Chlorophyll a.
What is the reaction to gravity?
things fall towards the center of the earth
What is the role of the reaction center in photosynthesis?
The reaction center in photosynthesis is where light energy is converted into chemical energy. It is a key part of the process that allows plants to produce glucose and oxygen using sunlight.
What is photosystems?
The group of proteins and pigments that transfers electrons to reaction center
What does a phtosystem contain?
Photosystem is composed of pigments, reaction center and electron acceptor
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 is the reaction when chlorophyll donates excited electrons?
the reaction center.
What pigment molecules absorb a photon and pass the energy to the reaction-center complex?
chlorophyll
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 main role of pigment molecules within the antenna or light harvesting complex?
The light-harvesting (or antenna) complex of plants is an array of protein and chlorophyll molecules embedded in the thylakoid membrane which transfer light energy to one chlorophyll a molecule at the reaction center of a photosystem.
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)
