Quinones are

Mobile electron carriers

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Enzymes of oxidative phosphorylation

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Enzymes of Kerbs cycle

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None of the above

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Solution

The correct option is A Mobile electron carriers
Quinones are the mobile carriers that plays an important role in several cellular reactions. They help in carrying electrons between the components of the light reactions. Since they are lipid soluble, they can diffuse through the membrane. They can carry one or two electrons, and, in their reduced form (with added electrons), they carry hydrogen atoms that can be released as hydrogen ions when the added electrons are passed on, for example, to a cytochrome.
So, the correct answer is option A.

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p H = 2, E_{Q u i n h y d r o n e}

E_{Q u i n h y d r o n e} = 1.30 V)

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The correct stability order of the following three quinones is ?

P h e n o l H O N O - --- \to (a) ⇌

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