Polysaccharides: Cellulose, Starch, and Glycogen

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Questions and Answers

What process forms a polysaccharide from many monosaccharides?

  • Polymerization (correct)
  • Crystallization
  • Digestion
  • Hydrolysis

Which of the following is a characteristic of polysaccharides?

  • Monosaccharide
  • Crystalline structure
  • Soluble in water
  • Insoluble in water (correct)

What does the hydrolysis of polysaccharides produce?

  • Monosaccharides (correct)
  • Amino acids
  • Glycerol
  • Fatty acids

Where is cellulose commonly found?

<p>Cell walls of plant cells (D)</p> Signup and view all the answers

Why can't humans digest cellulose?

<p>It is not digested in the human digestive system. (B)</p> Signup and view all the answers

Which polysaccharide is the storage form of carbohydrates in plants?

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

In which of the following foods can starch be found?

<p>Grains, yams, and bread (C)</p> Signup and view all the answers

What type of carbohydrate that stores in animal body is Glycogen?

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

Where is glycogen primarily stored in animals?

<p>Animal liver and muscles (C)</p> Signup and view all the answers

Which of the following is an example of a monosaccharide produced when polysaccharides are broken down?

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

Flashcards

Polysaccharide

A polymer made of many monosaccharides joined together.

Polymerization

Process where many monomers combine to form a polymer.

Cellulose

Cellulose is present in plant cells and fibers; it's indigestible but aids in preventing constipation.

Starch

Starch is a carbohydrate stored in plants; found in grains, yams, jak and bread.

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Glycogen

Glycogen is a carbohydrate stored in animal livers and muscles.

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Hydrolysis

Breaking down a polymer by adding water.

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Study Notes

  • Polysaccharides are formed through the polymerization of a large number of monosaccharides.
  • Polymerization involves monomers combining to form a polymer.
  • Polysaccharides are insoluble in water and do not form crystals.
  • Hydrolysis of polysaccharides yields monosaccharides, for example, cellulase, starch, and glycogen.

Table 1.3: Characteristics of Different Types of Polysaccharides

  • Cellulose is present in the cell walls of plant cells and in fibers.
  • Cellulose is not digested in the human digestive system but assists in preventing constipation.
  • Starch is found in grains, yams, jak fruit, and bread.
  • Starch is the type of carbohydrate stored in plants.
  • Glycogen is located in animal liver and muscles.
  • Glycogen is the type of carbohydrate stored in the animal body.

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