Cellulose Quiz

Following the main elements of cellulose, except?

• Hydrogen

• Nitrogen

• Oxygen

• Carbon

What percentage of the dry weight of wood is made up of cellulose?

• 10%

• 25%

• 50%

• 75%

Which organic compound is one of the most abundant, renewable, and biodegradable compounds on Earth?

• Cellulose

• Lignin

• Hemicellulose

• Starch

What acts as a binder and encasement for cellulose chain molecules in a fiber-reinforced composite?

• Starch

• Lignin

• Hemicellulose

• Pectin

What is the chemical formula for cellulose?

• C6H10O5

• C6H12O7

• C6H12O6

• C6H12O5

What is the average degree of polymerization (DP) for cellulose chains?

• 100-500

• 500-1000

• 700-10000

• 15000-20000

What type of bond between glucose units gives cellulose a stiff and rigid linear chain structure?

• Beta-1,4-glycosidic bond

• Beta-1,6-glycosidic bond

• Alpha-1,6-glycosidic bond

• Alpha-1,4-glycosidic bond

What makes cellulose insoluble in water?

• Van der Waals forces

• Hydrogen bonding

• Ionic bonding

• Covalent bonding

Which region of cellulose is responsible for its ability to adsorb and desorb water?

• Hydrophilic region

• Hydrophobic region

• Amorphous region

• Crystalline region

Which polymorphic structure of cellulose is the most thermodynamically stable?

• Cellulose III

• Cellulose IV

• Cellulose II

• Cellulose I