Concept explainers
(a)
Interpretation:
Base and monosaccharide used to form a given nucleoside needs to be identified and the name of the nucleoside needs to be stated.
Concept Introduction:
DNA and RNA are
A
Only the base and the sugar portion of a nucleotide is called a nucleoside.
Bases in DNA/RNA:
There are only five common nitrogen-containing bases are present in DNA/RNA, which are derived either from pyrimidine or purine.
Sugar in DNA/RNA:
The monosaccharide in RNA is D-ribose.
In DNA, the monosaccharide is D-2-deoxyribose (lacks a hydroxylgroup at C2).
Naming Nucleosides:
The suffix −idine is used to name a nucleoside derived from a pyrimidine base.
The suffix -osine is used to name a nucleoside derived from a purine base.
The prefix deoxy- is used if hydroxyl group is missing at C-2 position of the sugar.
(b)
Interpretation:
Base and monosaccharide used to form a given nucleosideneed to be identified and the name of the nucleoside needs to be stated.
Concept Introduction:
DNA and RNA are linear
A nucleotide has three components; a five-membered sugar ring (monosaccharide), a nitrogen-containing base, and a phosphate group.
Only the base and the sugar portion of a nucleotide is called a nucleoside.
Bases in DNA/RNA:
There are only five common nitrogen-containing bases are present in DNA/RNA, which are derived either from pyrimidine or purine.
Sugar in DNA/RNA:
The monosaccharide in RNA is D-ribose.
In DNA, the monosaccharide is D-2-deoxyribose (lacks a hydroxyl group at C2).
Naming Nucleosides:
The suffix −idine is used to name a nucleoside derived from a pyrimidine base.
The suffix -osine is used to name a nucleoside derived from a purine base.
The prefix deoxy- is used if hydroxyl group is missing at C-2 position of the sugar.
Want to see the full answer?
Check out a sample textbook solutionChapter 22 Solutions
General, Organic, and Biological Chemistry - 4th edition
- Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage LearningChemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub CoChemistry In FocusChemistryISBN:9781305084476Author:Tro, Nivaldo J., Neu, Don.Publisher:Cengage Learning
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningOrganic And Biological ChemistryChemistryISBN:9781305081079Author:STOKER, H. Stephen (howard Stephen)Publisher:Cengage Learning,Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning