MHT CET 2024 Chemistry question

Which 'c' atom of ribose sugar (numbered from 1' to 5') bonds with phosphate group to form AMP?

(A)1'
(B)3'
(C)4'
(D)5'Correct

Answer: (D)

Solution

A nucleotide is nucleoside + phosphate. In a nucleoside the base is attached to C-1' of the sugar (N-glycosidic bond), and the phosphoric acid forms a phosphate ester with the -OH on C-5' of the pentose sugar. Adenosine 5'-monophosphate (AMP) therefore has the phosphate

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Question ID VK-092923