Concept explainers
(a)
Interpretation:
The structure of an aldotetrose should be drawn.
Concept Introduction:
Monosaccharides in which the carbonyl group is at C-1 position are
Monosaccharides can be classified by the number of carbons in the carbon chain.
3 C's − triose
4 C's − tetrose
5 C's − pentose
6 C's − hexose
In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.
(b)
Interpretation:
The structure of a ketopentose should be drawn.
Concept Introduction:
Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones and they are called ketoses.
Monosaccharides can be classified by the number of carbons in the carbon chain.
3 C's − triose
4 C's − tetrose
5 C's − pentose
6 C's − hexose
In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.
(c)
Interpretation:
The structure of an aldohexose should be drawn.
Concept Introduction:
Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones, they are called ketoses.
Monosaccharides can be classified by the number of carbons in the carbon chain.
3 C's − triose
4 C's − tetrose
5 C's − pentose
6 C's − hexose
In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.
Want to see the full answer?
Check out a sample textbook solutionChapter 20 Solutions
General, Organic, and Biological Chemistry - 4th edition
- How many constitutional isomers of acyclic monosaccharides are there that can be classified as aldohexoses? As ketohexoses?arrow_forwardStarch is a polymer of:* Please choose one correct answet only A. Glucose B. Fructose C. Cellulose D. Amylose E/ None of the given optionsarrow_forwardDraw the structures of an aldopentose and a ketohexose.arrow_forward
- >Lactose is a disaccharide of glucose and galactose. Draw the structure of lactose.arrow_forwardA very important aldopentose which formsa fundamental component in RNA. What is the other name of galactose? which is B furanose?arrow_forwardis this monosaccharide aldose or ketose? what is the chemical group and its location that allows its classification.arrow_forward
- Determine the identity of each monosaccharide (aldopentose, ketotriose etc) How does each monomer differ from glucose? How is each monomer similar?arrow_forwardStructures of monosaccharides are a) polymers b) pyranoses or furanoses c) aldoses or ketoses d) B and Carrow_forwardwhich is a reducing sugar?? why?arrow_forward
- Explain why lactose and maltose differs from sucrose in its chemical activity with Fehling’s, Benedict’s and using Seliwanoff’s reagents?arrow_forwardSuggest how you could distinguish a sample of glucose from a sample of maltose using Benedict’s reagent. [Hint: maltose is a disaccharide reducing sugar].arrow_forwardThe hydrolysis of cellulose, glycogen, and starch producesonly one monosaccharide. Why is this so? Whatmonosaccharide is produced?arrow_forward
- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningIntroductory Chemistry: An Active Learning Approa...ChemistryISBN:9781305079250Author:Mark S. Cracolice, Ed PetersPublisher:Cengage Learning
- Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage LearningGeneral, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningOrganic And Biological ChemistryChemistryISBN:9781305081079Author:STOKER, H. Stephen (howard Stephen)Publisher:Cengage Learning,