The electrons released by P700 of PS-I in the presence of light are taken up by the primary acceptor and are then passed on to ferredoxin (Fd), plastoquinone (PQ), cytochrome complex, plastocyanin (PC) and finally back to P700 i.e., electrons come back to the same molecule after cyclic movement.
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Reduce NADP+ to NADPH
water
Photophosphorylation occurs in chloroplasts during photosynthesis, where light energy is used to generate a proton gradient and drive ATP synthesis. In contrast, oxidative phosphorylation occurs in mitochondria, where electrons are transferred along the electron transport chain to generate a proton gradient and drive ATP synthesis using energy released from the oxidation of nutrients.
It is enerated in plants during the process photophosphorylation (aka. photosynthesis) It is generated in plants through the process of photophosphorylation, in the thylakoid membranes of chloroplasts.
The products of non-cyclic electron flow in photosynthesis are ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate). This process occurs during the light-dependent reactions of photosynthesis and helps to generate energy-rich molecules that are used in the Calvin cycle to produce glucose.
Electrons in the outermost shell are valence electrons!
Carbon dioxide is a noncyclic photophosphorylation and is the ultimate acceptor of electrons that have been produced from the splitting of water. A product of both cyclic and noncyclic photophosphorylation is ATP.
The electrons that are passed to NADPH during noncyclic photophosphorylation were obtained from water. The ultimate electron and hydrogen acceptor in the noncyclic pathway is NADPH+.
The answer is A) Cyclic Photophosphorylation
They are used in the Calvin-Benson cycle.
ATP and NADPH
No, oxygen is created from the splitting of water as a waste product. After the electrons from the splitting of water go through photosystem 2 & 1, they would be used to create NADPH in noncyclic photophosphorylation.
Cyclic photophosphorylation is when the electron from the chlorophyll went through the electron transport chain and return back to the chlorophyll. Noncyclic photophosphorylation is when the electron from the chlorophyll doesn't return back but incorporated into NADPH.
Plant, green algae and some bacterial photosynthesis depend on noncyclic electron flow, which means that electrons lost by the photosystems are not recycled back to the photosystems but instead passed on to NADPH. To replenish electrons lost by the photosystems, these organisms rely on an oxygen evolving complex (mechanism not well understood) that split water into protons, electrons, and oxygen. The electrons are used to replenish electrons lost by the photosystems, the protons are used to generate the proton gradient used to produce ATP, and oxygen, not used by the plant, leaves as a byproduct.
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