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nothing.... you stop asking stupid questions ediot
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Why is P680 of photosystem II said to be the strongest biological oxidizing agent?
This molecule results from the transfer of an electron to the primary electron acceptor of photosystem II and strongly attracts another electron.
After electrons leave photosystem II they go into an electron transport chain of three protein complexes Where do they go after that electron transport chain?
They go into photosystem I.
What happens to electrons when pigments in photosystem II absorbs light?
they move through an electron transport chain to photosystem 1
What is the role of photosystem 1 in the light reactions?
is a cluster of pigments, with a perticular chlorophyl in the center. The energy is absorbed and is then passed to the Hugh energy electrons, NADP will then pick up the electrons and make NADPH
Where does photosystem 2 and photosystem 1 occur?
1. Photosystem I is found in the membrane facing the inside of the grana and Photosystem II is found in membrane facing the stromaTHYLAKOID MEMBRANE
Why is P680 of photosystem II said to be the strongest biological oxidizing agent?
This molecule results from the transfer of an electron to the primary electron acceptor of photosystem II and strongly attracts another electron.
What happens to electrons when pigments in photosystem absorb lights?
Photosystem's electron travel through the electron transport chain(etc) where ATP is produced and then back to the photosystem. In non-cyclic photophosphorylation, Photosystem II electron then is absorbed by photosystem I, photosystem I electron used to form NADPH and photosystem II gets its electron from photolysis of water. For you unfortunate children using Novanet: They move through an electron transport chain to photosystem 1.
What happen to the light energy that is trapped by the chloroplast during the first stage of photosynthesis?
Light energy is not exactly trapped. The light energy excites the electron in the reaction centres of photosystem I and photosystem II. The electron excites and transfers to the electron transport chain ( chain of electron carriers), this produces ATP. Then the electron of photosystem II is transferred by photosystem I and the electron of the photosystem I is used with H+ and NADP to form NADPH. Photosystem II gets back an electron from photolysis of water.
What is the difference between photosynthesis I and photosynthesis II?
Photosynthesis II or PS II (photosystem II) comes before PS I. PSII uses a pair of P680 chlorophyll a, while PSI uses a pair of P700 chlorophyll a. These systems populate the thylakoid membrane.First, light hits PS II and excites its pigment molecules and the energy bounces off the pigment molecules until it gets to the P680 chlorophyll and excites its electrons which then causes it to give off an electron to the Primary electron acceptor.Now the pair of P680 is deprived of an electron, this is where water comes nto play. An enzyme catalyzes the splitting of water to produce O2 and two electrons, these electrons supply the ones that the pair of P680 chlorophyll gave away, this enables the P680 to be able to get excited again and again without being deprived of electrons.Back to the primary acceptor, the excited electron passes from PS II to PS I via the Electron Transport chain. This produces ATP.The electron then is at the P700 pair of chlorophyll a's of PS I which excites it and it gives off that electron to another primary electron acceptor which transports its electrons via ETC as well, but the final electron acceptor is NADP+, which with the electron becomes: NADPH.
After electrons leave photosystem II they go into an electron transport chain of three protein complexes Where do they go after that electron transport chain?
They go into photosystem I.
Is the energy from sunlight trapped by chlorophyll located in the electron transport chain?
No, the energy trapped by chlorophyll is located in photosystem I and II. Light energy is first captured by PS II and an electron is then transferred to a primary electron acceptor known as plastoquinone. Pq then transfers it's electron to the cytochrome complex that transfers its energy to the electron transport system which passes it on to plastocyanin which in turn gives its electron to PS I where it is re-excited by photons. This process is known as the electron transport but the energy captured by chlorophyll is located in the photosystems.
After electrons leave photosystem II they go into an electron transport chain of three protein complexes. Where do they go after that electron transport chain?
They go into photosystem I.
What happens to electrons when pigments in photosystem II absorbs light?
they move through an electron transport chain to photosystem 1
What is the role of photosystem 1 in the light reactions?
is a cluster of pigments, with a perticular chlorophyl in the center. The energy is absorbed and is then passed to the Hugh energy electrons, NADP will then pick up the electrons and make NADPH
What is photosystem 11?
It's photosystem II, in the electron transport chain of photosynthesis where light is used to create O2 and H.
Where does photosystem 2 and photosystem 1 occur?
1. Photosystem I is found in the membrane facing the inside of the grana and Photosystem II is found in membrane facing the stromaTHYLAKOID MEMBRANE
Electron transport chains help move excited electrons along in photosystem II clusters?
true
