Water splitting complex is associated with which of the following?

PS-I and is located on the inner side of thylakoid membrane

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PS-II and is located on the inner side of thylakoid membrane

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PS-Il and is located on the outer side of thylakoid membrane

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PS-I and is located on the outer side of thylakoid membrane

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Solution

The correct option is B PS-II and is located on the inner side of thylakoid membrane
Water splitting complex is associated with PS-II and is located on the inner side of the thylakoid membrane (facing the lumen of thylakoids). It helps in splitting the water. The splitting of water (photolysis of water) results in the release of protons, electrons and oxygen. The electrons are utilised to fill the void created in PS-II due to loss of electrons. The protons accumulate inside the thylakoid lumen and generate a proton gradient and the breakdown of this gradient generates ATP. Oxygen formed due to the splitting of water diffuses out through stomata.

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Similar questions

Q. PS II is physically located on which side of thylakoid membrane?

Q. We need to emphasis here that the water splitting complex is associated with the PS II. which itself is physically located on the inner side of the membrance of the thylakoid. Then, where are the protons and

O_{2}

formed likely to be released- in the lumen?or on the outer side of the membrane?

Q. Read the following statements with respect to chemiosmosis:
(a) Splitting of water molecules takes place on the inner side of the thylakoid membrane.
(b) NADP reductase enzyme is located on the stromal side of thylakoid membrane.
(c) Energy is used to pump protons from stroma to lumen.
(d) During photophosphorylation, the pH decrease in the lumen of thylakoid.
Which of the above statement(s) is/are correct?

Question 10
Splitting of water is associated with
(a) photosystem I
(b) lumen to thylakoid
(c) both photosystem I and II
(d) inner surface of thylakoid membrane

Q. Assertion :Incenses in Proton gradient inside luman responsible for ATP synthesis. Reason: Oxygen evolving complex of PS I located on thylakoid membrane bt stroma, releases H+ ions

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Standard XII Biology

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