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Questions and Answers

Which statement accurately describes the difference between homopolysaccharides and heteropolysaccharides?

  • Homopolysaccharides are typically branched, whereas heteropolysaccharides are linear.
  • Homopolysaccharides consist of one type of monomer, while heteropolysaccharides contain more than one type. (correct)
  • Homopolysaccharides contain multiple types of monomers, while heteropolysaccharides consist of a single type.
  • Homopolysaccharides have a defined molecular weight, while heteropolysaccharides do not.

What distinguishes a reducing sugar from a non-reducing sugar?

  • Reducing sugars can undergo oxidation, while non-reducing sugars cannot. (correct)
  • Non-reducing sugars can form glycosidic bonds, while reducing sugars cannot.
  • Non-reducing sugars contain a free aldehyde or ketone group, whereas reducing sugars do not.
  • Reducing sugars are soluble in alcohol, while non-reducing sugars are not.

Which of the following best explains why sucrose is considered a non-reducing sugar?

  • It has a glycosidic bond between two specific monosaccharides that prevents oxidation. (correct)
  • It contains a free aldehyde group available to reduce other compounds.
  • It can form a reducing agent when hydrolyzed.
  • It is a polysaccharide that does not involve any reducing properties.

How are structural polysaccharides important for plant cells?

<p>They make up the cell wall, providing structural support. (C)</p> Signup and view all the answers

Which of the following statements is true about polysaccharides in nature?

<p>They are the most abundant carbohydrates and can be either branched or linear. (B)</p> Signup and view all the answers

Which sugar is found at the non-reducing end of Type A blood glycoproteins?

<p>N-acetylgalactosamine (B)</p> Signup and view all the answers

What is the primary role of glycoproteins in biological systems?

<p>Protein-protein recognition (A)</p> Signup and view all the answers

Which of the following is a key characteristic of amylopectin, a component of starch?

<p>Branch-points every 24-30 residues (B)</p> Signup and view all the answers

What is the main function of glycogen in animals?

<p>Main storage polysaccharide (C)</p> Signup and view all the answers

Which structural feature is common to both heparin and heparan sulfate?

<p>Both contain sulfated components (C)</p> Signup and view all the answers

How does the presence of cellulose affect its digestibility by most animals?

<p>Most animals lack enzymes to hydrolyze it (B)</p> Signup and view all the answers

Which polysaccharide provides lubrication in joints?

<p>Hyaluronic acid (A)</p> Signup and view all the answers

What type of glycosidic linkages does glycogen primarily feature?

<p>(α1 → 4) and (α1 → 6) (C)</p> Signup and view all the answers

Which component of starch is an unbranched polymer?

<p>Amylose (C)</p> Signup and view all the answers

In what form do animals primarily store glucose?

<p>Glycogen (D)</p> Signup and view all the answers

What is the substance that parasitic organisms utilize to digest cellulose?

<p>Cellulase (B)</p> Signup and view all the answers

What is a primary component of heparin's structure?

<p>A heteropolysaccharide of D-glucoronic acid-2-sulfate (D)</p> Signup and view all the answers

How does cellulose differ structurally from starch and glycogen?

<p>Cellulose consists of (β1 → 4) linkages (D)</p> Signup and view all the answers

Which glycosaminoglycan is predominantly found in the extracellular matrix providing structure?

<p>Chondroitin (C)</p> Signup and view all the answers

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