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ATP Synthase

The creation ...

Question

The creation of proton gradient across the thylakoid membrane is a result of

A

Increase in pH in the lumen

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B

Accumulation of protons in the stroma

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C

Decrease in proton number in the stroma

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D

Decrease in proton number in the stroma

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Solution

The correct option is C
Decrease in proton number in the stroma

The proton gradient is generated due to the accumulation of protons on the inner side of the lumen and a decrease in pH on the lumen side of the thylakoid membrane.

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Similar questions

Q. Assertion :The proton gradient results in movement of protons across the membrane to stroma through the transmembrane channel of the

F_{0}

of the ATPase. Reason: This proton gradient leads to release of energy

Q. The creation of proton gradient across thylakoid membrane is a result of

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?

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

Protons produced by photolysis accumulate in lumen of thylakoids.

Reason: Photolysis occurs in inner membrane of thylakoids.

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