Table of contents

1. A Review of General Chemistry5h 5m
2. Molecular Representations1h 14m
3. Acids and Bases2h 46m
4. Alkanes and Cycloalkanes4h 17m
5. Chirality3h 39m
6. Thermodynamics and Kinetics1h 22m
7. Substitution Reactions1h 48m
8. Elimination Reactions2h 30m
9. Alkenes and Alkynes2h 9m
10. Addition Reactions3h 19m
11. Radical Reactions1h 58m
12. Alcohols, Ethers, Epoxides and Thiols2h 42m
13. Alcohols and Carbonyl Compounds2h 17m
14. Synthetic Techniques1h 26m
15. Analytical Techniques:IR, NMR, Mass Spect7h 3m
16. Conjugated Systems6h 13m
17. Ultraviolet Spectroscopy51m
18. Aromaticity2h 34m
19. Reactions of Aromatics: EAS and Beyond5h 1m
20. Phenols55m
21. Aldehydes and Ketones: Nucleophilic Addition4h 56m
22. Carboxylic Acid Derivatives: NAS2h 51m
23. The Chemistry of Thioesters, Phophate Ester and Phosphate Anhydrides1h 10m
24. Enolate Chemistry: Reactions at the Alpha-Carbon1h 53m
25. Condensation Chemistry2h 9m
26. Amines1h 43m
27. Heterocycles2h 0m
28. Carbohydrates5h 53m
29. Amino Acids4h 20m
30. Peptides and Proteins2h 42m
31. Catalysis in Organic Reactions1h 30m
32. Lipids 2h 50m
33. The Organic Chemistry of Metabolic Pathways2h 52m
34. Nucleic Acids1h 32m
35. Transition Metals6h 14m
36. Synthetic Polymers1h 49m

28. Carbohydrates

Monosaccharides - Common Structures

Organic Chemistry

28. Carbohydrates

Monosaccharides - Common Structures

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Multiple Choice

Which monosaccharide is found in the structure of DNA, and which is found in RNA?

Galactose in DNA and mannose in RNA

Glucose in DNA and fructose in RNA

Ribose in DNA and deoxyribose in RNA

Deoxyribose in DNA and ribose in RNA

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Verified step by step guidance

Understand the basic structure of nucleic acids: DNA and RNA are polymers made up of nucleotides, each consisting of a sugar, a phosphate group, and a nitrogenous base.

Identify the sugar component in DNA: DNA contains a sugar called deoxyribose. This sugar is a pentose, meaning it has five carbon atoms, and it lacks one oxygen atom compared to ribose, hence the name 'deoxy'.

Identify the sugar component in RNA: RNA contains a sugar called ribose. Like deoxyribose, ribose is also a pentose sugar, but it has a hydroxyl group (-OH) on the 2' carbon, which deoxyribose lacks.

Compare the sugars: The key difference between ribose and deoxyribose is the presence of the hydroxyl group on the 2' carbon in ribose, which is absent in deoxyribose. This difference is crucial for the structural and functional distinctions between DNA and RNA.

Conclude the correct monosaccharides: Based on the structural differences, deoxyribose is the sugar found in DNA, and ribose is the sugar found in RNA.