Glycogen Structure and Function Quiz

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Questions and Answers

Cellulose is a very strong polysaccharide due to the large number of ______ bonds in and between the fibrils.

hydrogen

Glycogen is for ______ storage in animals.

glucose

Starch is for ______ storage in plants.

glucose

Cellulose is for ______ strength in plants.

<p>structural</p> Signup and view all the answers

Monomers join together by ______ reactions to make polymers.

<p>condensation</p> Signup and view all the answers

Polymers are ______ back into monomers.

<p>hydrolysed</p> Signup and view all the answers

Glycogen is a highly ______ molecule.

<p>branched</p> Signup and view all the answers

Glycogen is ______ more branched than starch.

<p>even</p> Signup and view all the answers

Cellulose is the only polysaccharide that is made up of ______ glucose monomers.

<p>β</p> Signup and view all the answers

The glucose monomers in cellulose are joined by ______ glycosidic bonds.

<p>1,4 -</p> Signup and view all the answers

The long, straight chains of β-glucose in cellulose ______ to each other.

<p>accumulate and lie parallel</p> Signup and view all the answers

The function of cellulose is to provide ______ strength in plants.

<p>structural</p> Signup and view all the answers

Glycogen is a polymer made up of α-glucose and is very similar in structure to __________ in starch.

<p>amylopectin</p> Signup and view all the answers

The key difference between the structure of glycogen and starch is that glycogen contains more __________ - glycosidic bonds.

<p>1,6</p> Signup and view all the answers

Glycogen is insoluble due to the fact it is a __________ molecule.

<p>large</p> Signup and view all the answers

Glycogen is the major carbohydrate storage molecule found in __________ animal cells.

<p>muscles</p> Signup and view all the answers

Glycogen is mainly stored in liver and muscle cells to ensure they always have access to __________ to respire and release energy.

<p>glucose</p> Signup and view all the answers

Glucose is used in respiration, but if more glucose is eaten than the cells need for respiration it is converted into the polymer __________ and stored.

<p>glycogen</p> Signup and view all the answers

What is the main function of cellulose in plants?

<p>To provide structural support (B)</p> Signup and view all the answers

How are the glucose monomers in cellulose joined together?

<p>By 1,4-glycosidic bonds (D)</p> Signup and view all the answers

What property of cellulose makes it a strong structural component in plants?

<p>Its ability to form hydrogen bonds (B)</p> Signup and view all the answers

How do the cellulose fibrils in plant cell walls contribute to the overall strength of the cell wall?

<p>They are arranged in a parallel, overlapping pattern (C)</p> Signup and view all the answers

What is the main difference between the structure of cellulose and starch?

<p>Cellulose is made of β-glucose, while starch is made of α-glucose (D)</p> Signup and view all the answers

What is the primary function of the hydrogen bonds in cellulose fibrils?

<p>To enhance the structural integrity of the cell wall (C)</p> Signup and view all the answers

What is the primary structural unit of cellulose?

<p>β-glucose (D)</p> Signup and view all the answers

Which of the following statements about the structure of cellulose is correct?

<p>Cellulose fibers are formed by the alignment of fibrils through hydrogen bonding (B)</p> Signup and view all the answers

What is the primary function of cellulose in plants?

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

Which of the following properties of cellulose contributes to its strength?

<p>The large number of hydrogen bonds between and within fibrils (C)</p> Signup and view all the answers

What is the advantage of cellulose being insoluble in water?

<p>It prevents changes in the water potential of plant cells (D)</p> Signup and view all the answers

How do cellulose fibrils form cellulose fibers?

<p>Through hydrogen bonding (C)</p> Signup and view all the answers

What is the primary function of cellulose in plants?

<p>To provide structural support and rigidity (C)</p> Signup and view all the answers

Which of the following statements about the structure of cellulose is correct?

<p>It is composed of β-glucose monomers linked by 1,4-glycosidic bonds (C)</p> Signup and view all the answers

What property of cellulose contributes to its ability to provide structural strength in plants?

<p>The presence of numerous hydrogen bonds between the cellulose fibrils (C)</p> Signup and view all the answers

How do the cellulose fibrils in plant cell walls contribute to the prevention of cell bursting?

<p>They provide a barrier against excessive water uptake (B)</p> Signup and view all the answers

Which of the following statements about cellulose is false?

<p>It is composed of α-glucose monomers linked by 1,6-glycosidic bonds (C)</p> Signup and view all the answers

What is the primary reason for the high mechanical strength of cellulose fibrils?

<p>The presence of numerous hydrogen bonds between the cellulose chains (D)</p> Signup and view all the answers

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