Answer :
The coenzymes known as NAD, FAD and coenzyme a all contain a derivative of Adenosine.
What is Adenosine?
An abundantly found chemical component in nature, adenosine can be found in a variety of derivative forms. The molecule consists of a ribose joined to an adenine by a Beta-N9-glycosidic link. All life depends on adenosine, one of the four nucleoside building blocks of RNA and DNA. Deoxyadenosine, an isomer of adenosine, is also a building block of DNA. The energy molecules adenosine mono-, di-, and triphosphate (AMP/ADP/ATP) are its derivatives.
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