Chitin, a structural polysaccharide found in the exoskeleton of arthropods, differs significantly from cellulose in terms of its monomeric unit. This difference primarily stems from:
The presence of an N-acetyl group at C-2 of the monomer
The type of glycosidic linkage between monomers
The degree of polymerization (chain length)
The three-dimensional arrangement of the polymer chains
Related Questions
Select the correct which represents the homopolysaccharides made up of glucose monomers
Sucrose, lactose, maltose
Chitin, glycogen, starch
Starch, inulin, peptidoglycan
Starch, glycogen, cellulose
Which structural characteristic of cellulose prevents it from forming a blue color with iodine?
α-1,4-glycosidic linkages
β-1,4-glycosidic linkages
Presence of fructose units
Branched polymer structure
The bond present between two carbohydrate molecules is
Amide
Hydrogen
Glycosidic
phosphodiester
The two functional groups characteristic of sugars are
Carbonyl and hydroxyl
Hydroxyl and methyl
Carbonyl and phosphate
Carbonyl and methyl
Inulin, a storage polysaccharide found in some plants, differs from starch in several key aspects. Which of the following statements accurately describes a major difference between inulin and starch?
Inulin is a branched polymer, while starch is strictly linear.
Inulin is primarily found in animals, while starch is found in plants.
Inulin forms a helical structure, while starch forms a sheet-like structure.
Inulin is composed of fructose units linked by β(2→1) glycosidic bonds, while starch primarily consists of glucose units linked by α(1→4) and α(1→6) bonds.
Sucrose is formed by a dehydration reaction between glucose () and fructose (). What is the molecular formula of sucrose?
Example of a typical homopolysaccharide is
Lignin
Suberin
Inulin
Starch
Which of the following statements are incorrect?
I. Left end of a polysaccharide is called non-reducing end while right end is called reducing end
II. Starch and glycogen are branched molecules
III. Starch and glycogen are the reserve food materials of plants and animals, respectively
IV. Starch can hold iodine molecules in its helical secondary structure but cellulose being non-helical, cannot hold iodine
I and II
II and III
I and IV
III and IV
How many carbon atoms generally take part in the formulation of monosaccharides?
5 to 10
1 to 5
5 to 15
3 to 7
Table sugar consists of
Lactose
Sucrose
Maltose
glucose