Lexic.us

Definition of Ubiquinone

1. Noun. Any of several quinones found in living cells and that function as coenzymes that transfer electrons from one molecule to another in cell respiration.

Definition of Ubiquinone

1. [n -S]

Medical Definition of Ubiquinone

1. Small molecule with a hydrocarbon chain (usually of several isoprene units) that serves as an important electron carrier in the respiratory chain. The acquisition of an electron and a proton by ubiquinone produces ubisemiquinone a free radical), a second proton and electron convert this to dihydroubiquinone. Plastoquinone, which is almost identical to ubiquinone, is the plant form. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Ubiquinone

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