In mitochondria, chemiosmosis translocates protons from the matrix into the intermembrane space, whereas in chloroplasts, chemiosmosis translocates protons from

the stroma to the photosystem II.

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the matrix to the stroma.

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the stroma to the thylakoid space.

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the intermembrane space to the matrix.

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Solution

The correct option is C
the stroma to the thylakoid space.

This helps in the formation of ATP.

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Similar questions

Q. Assertion :Reduced coenzyme formed in the oxidation of isocitric acid accounts for more ATP production in electron transport than the reduced coenzyme formed in succinic acid oxidation. Reason: In the reoxidation of mitochondrial NADH, the number of protons translocated from matrix to intermembrane space is less than the protons translocated when FADH

_{2}

is oxidized.

In thylakoids, protons travel through ATP synthase from the stroma to the thylakoid space. Therefore thecatalytic ʺknobsʺ of ATP synthase would be located

Q. Which among these pumps protons to the mitochondrial intermembrane space?

Q. Select the correct option:

Study the following statements regarding chemiosmotic hypothesis in mitochondria and select the correct ones.
(i)

F_{1}

headpiece contains the site for the syntesis of ATP from ADP+Pi.
(ii)

F_{0}

part forms the channel through which protons cross the inner membrane.
(iii) For each ATP produced,

{2 H}^{+}

pass through

F_{0}

from the intermembrane space to the matrix down the electrochemical proton gradient.

Q. Protons

(H^{+})

accumulate in the thylakoid space during electron transport between photosystems-I and II. The excess of protons in the thylakoid space

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In mitochondria, chemiosmosis translocates protons from the matrix into the intermembrane space, whereas in chloroplasts, chemiosmosis translocates protons from

The correct option is C the stroma to the thylakoid space. This helps in the formation of ATP.

The correct option is C
the stroma to the thylakoid space.

This helps in the formation of ATP.