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Question
Which of the following is a Hydrogen carrier?
Which of the following is a Hydrogen carrier?
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Solution
The correct option is A UQ
A hydrogen carrier is an organic macromolecule that transports atoms of hydrogen from one place to another inside a cell or from cell to cell. Ubiquinone (UQ) is an organic molecule involved in the electron transfer chain that transfers electrons from NADH reductase to cytochrome reductase (cytochrome b-c1 complex). During this process, it pumps out hydrogen ions from the matrix to the intermembrane space. Cytochrome b, cytochrome c and cytochrome c1 are also involved in the electron transport chain but they do not carry out proton translocation and hence do not act as hydrogen carriers. So, the correct option is 'UQ'.
A hydrogen carrier is an organic macromolecule that transports atoms of hydrogen from one place to another inside a cell or from cell to cell. Ubiquinone (UQ) is an organic molecule involved in the electron transfer chain that transfers electrons from NADH reductase to cytochrome reductase (cytochrome b-c1 complex). During this process, it pumps out hydrogen ions from the matrix to the intermembrane space. Cytochrome b, cytochrome c and cytochrome c1 are also involved in the electron transport chain but they do not carry out proton translocation and hence do not act as hydrogen carriers. So, the correct option is 'UQ'.
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