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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

  1. (a) Draw the structural formula for the sugar β-D-2 -deoxyribose.
  2. (b) Draw the structural formula for the nucleoside deoxyadenosine (it consists of β-D-2-deoxyribose and adenine).
  3. (c) Draw the structural formula for the nucleotide deoxyadenosine 5'-monophosphate.

(a)

Interpretation Introduction

Interpretation:

The structural formula for the sugar β-D-2-deoxyribose has to be drawn.

Concept introduction: Carbohydrates are defined as the polyhydroxy aldehyde or ketone or any compound that can be hydrolyzed to them. Deoxyribose sugar is an example of monosaccharide sugar and has a molecular formula C5H10O4. It is also called pentose sugar as it contains five carbon atoms and forms a five-membered ring structure - 4 carbon atoms and 1 oxygen atom.

Explanation

Deoxyribose is a monosaccharide sugar with formula C5H10O4. The hydroxyl group at C-2 position is missing and hence the same deoxy. It forms a five-membered ring with four carbon atom and one oxygen atom. The hydroxy group at anomeric carbon is present above the plane.

Thus the structure of β-D-2-deoxyribose sugar is,

(b)

Interpretation Introduction

Interpretation:

The structural formula for nucleoside deoxyadenosine has to be drawn.

Concept introduction: Carbohydrates are defined as the polyhydroxy aldehyde or ketone or any compound that can be hydrolyzed to them. Deoxyribose sugar is an example of monosaccharide sugar and has a molecular formula C5H10O4. It is also called pentose sugar as it contains five carbon atoms and forms a five-membered ring structure - 4 carbon atoms and 1 oxygen atom.

There are five nitrogenous bases adenine, guanine, thymine, cytosine and uracil. A sugar unit attached to a base form a nucleoside unit.

There are five nitrogenous bases adenine, guanine, thymine, cytosine and uracil. A sugar unit attached to the base and a phosphate group together form a nucleotide unit. They are the main building block of nucleic acids DNA and RNA.

(c)

Interpretation Introduction

Interpretation:

The structural formula for nucleotide deoxyadenosine 5'-monophosphate has to be drawn.

Concept introduction: Carbohydrates are defined as the polyhydroxy aldehyde or ketone or any compound that can be hydrolyzed to them. Deoxyribose sugar is an example of monosaccharide sugar and has a molecular formula C5H10O4. It is also called pentose sugar as it contains five carbon atoms and forms a five-membered ring structure - 4 carbon atoms and 1 oxygen atom.

The structural formula for deoxyadenosine 5'-monophosphate is,

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