Carbohydrates and Their Functions

This video tutorial explores carbohydrates, their classification, and their roles in energy storage. It covers monosaccharides, disaccharides, and polysaccharides, focusing on glucose and ribose structures. The video explains condensation and hydrolysis reactions, detailing the formation of glycosidic bonds. It also examines the structures and functions of key polysaccharides like starch, glycogen, and cellulose, highlighting their importance in plants and animals.

What are the three elements that make up carbohydrates?

• Carbon, Hydrogen, Nitrogen

• Carbon, Hydrogen, Oxygen

• Hydrogen, Nitrogen, Oxygen

• Carbon, Nitrogen, Oxygen

How do plants store glucose?

• As glycogen

• As starch

• As cellulose

• As sucrose

Which of the following is a pentose sugar?

• Galactose

• Ribose

• Fructose

• Glucose

What is the main difference between alpha and beta glucose?

• Number of carbon atoms

• Position of hydrogen and hydroxide on the first carbon

• Shape of the molecule

• Presence of oxygen

What type of bond joins two monosaccharides to form a disaccharide?

• Hydrogen bond

• Ionic bond

• Peptide bond

• Glycosidic bond

Which disaccharide is made up of glucose and fructose?

• Cellulose

• Lactose

• Sucrose

• Maltose

What is the primary storage form of carbohydrates in animals?

• Starch

• Sucrose

• Glycogen

• Cellulose

Which polysaccharide is known for its strong structural role in plant cell walls?

• Starch

• Glycogen

• Amylopectin

• Cellulose

What makes cellulose difficult to digest for many organisms?

• Its compact structure

• Its solubility

• Lack of necessary enzymes

• Its branching structure

How do ruminants like cows digest cellulose?

• By breaking it down into glucose

• Using their own enzymes

• Through mechanical digestion

• With the help of bacteria in their gut