Glycogen, the primary storage polysaccharide in animals, exhibits a highly branched structure. Which of the following best explains the significance of this branching for its function?
Branching increases the structural rigidity of glycogen, enabling it to form strong fibers.
Branching decreases the osmotic pressure exerted by glycogen within cells.
Branching facilitates the transport of glycogen across cell membranes.
Branching allows for rapid hydrolysis by providing multiple sites for enzyme action, crucial for quick energy release.
Related Questions
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
Benedict’s reagent test is conducted to confirm the presence of
Polysaccharides like starch
Lipids
Reducing sugars
proteins
Why doesn't cellulose react with iodine to produce a blue color?
It lacks the helical structure necessary for iodine complexation.
It contains fructose units instead of glucose.
It is a branched polymer and cannot interact with iodine.
It is insoluble in water, preventing the reaction with iodine.
…… is a heteropolymer
Starch
Glycogen
Chitin
Cellulose
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 α(1→6) linkages, and high sulfate content.
Repeating disaccharide units containing glucuronic acid and N-acetylglucosamine, along with extensive hydration.
Linear structure with β(1→4) linkages, and hydrophobic interactions.
Presence of fucose residues and formation of triple helices.
Which enzyme is useful as colour brightening agent in detergent industry?
Amylase
Lipase
Protease
Cellulase
A molecule is found to contain multiple hydroxyl groups and a ketone functional group. To which class of biomolecules does it most likely belong?
Lipids
Proteins
Nucleic Acids
Carbohydrates
Which two functional groups are primarily found in sugar molecules?
carboxyl and amino
hydroxyl and carbonyl
phosphate and sulfhydryl
methyl and ethyl
Two molecules of a monosaccharide, , undergo a dehydration reaction to form a disaccharide. What is the general formula of the resulting disaccharide?
Animal starch is
amylum
amylose
glycogen
inulin
