Which of the following structures represents | vedclass

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(A) Ribose is a pentose sugar (a five-carbon sugar) with the chemical formula $C_5H_{10}O_5$. In its cyclic form,it forms a furanose ring (a five-memb

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(A) Ribose is a pentose sugar (a five-carbon sugar) with the chemical formula $C_5H_{10}O_5$. In its cyclic form,it forms a furanose ring (a five-membered ring containing four carbons and one oxygen). Structure $A$ shows a five-membered ring with $-OH$ groups on both the $C_2$ and $C_3$ positions,which is characteristic of ribose. Structure $B$ represents deoxyribose,which lacks an oxygen atom at the $C_2$ position. Structures $C$ and $D$ represent hexose sugars (six-membered rings),such as glucose or galactose.

Which of the following structures represents ribose sugar?

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