Which of the following biomolecules contains a phosphodiester bond?
Nucleic acids
Proteins
Carbohydrates
Lipids
Related Questions
Lactose is composed of?
Glucose + Fructose
Glucose + Glucose
Glucose + Galactose
Fructose + Galactose
Which of the following is NOT a characteristic of cellulose?
Composed of glucose monomers
Provides energy for humans
Forms a structural component of plant cell walls
Contains beta-1,4 glycosidic linkages
Hyaluronic acid, a glycosaminoglycan found in connective tissues, exhibits unique viscoelastic properties. Which combination of structural features contributes most significantly to these properties?
Branched structure with Ξ±(1β6) linkages, and high sulfate content.
Repeating disaccharide units containing glucuronic acid and N-acetylglucosamine, along with extensive hydration.
Linear structure with Ξ²(1β4) linkages, and hydrophobic interactions.
Presence of fucose residues and formation of triple helices.
Inulin is a polymer of
Glucose
Galactose
Fructose
Arabinose
Which of these is NOT a function of the chitinous exoskeleton in arthropods?
Protection from predators
Support for the body
Providing a site for muscle attachment
Producing blood cells
Animal starch is
amylum
amylose
glycogen
inulin
The exoskeleton of arthropods is primarily composed of which substance?
Chitin
Cellulose
Keratin
Calcium carbonate
Which is a reducing sugar?
Galactose
Gluconic acid
Ξ²- methyl galactoside
Sucrose
Double sugar is
Monosaccharide
Disaccharide
Polysaccharide
Oligosaccharide
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
