Understanding Carbohydrates

What are carbohydrates primarily composed of?

• Hydrogen, oxygen, and nitrogen

• Carbon, hydrogen, and nitrogen

• Carbon, hydrogen, and oxygen

• Carbon, nitrogen, and oxygen

What is a polysaccharide?

• A single sugar molecule

• A molecule made of two sugar units

• A large molecule made of many sugar units

• A molecule made of amino acids

Which of the following is a monosaccharide?

• Glycogen

• Sucrose

• Glucose

• Starch

What is the primary role of glucose in living organisms?

• Structural support

• Energy storage

• Transport of nutrients

• Source of energy

Which polysaccharide is known for its structural role in plants?

• Chitin

• Cellulose

• Glycogen

• Starch

What is the main energy storage polysaccharide in plants?

• Chitin

• Starch

• Glycogen

• Cellulose

Why can't animals digest cellulose?

• The glucose units are joined differently

• It is not made of glucose

• It contains nitrogen

• It is too large to be broken down

What makes chitin different from other carbohydrates?

• It is soluble in water

• It is a source of energy

• It is only found in plants

• It contains nitrogen

Where is chitin commonly found?

• In the energy storage of animals

• In the exoskeletons of arthropods

• In the cell walls of plants

• In the cell walls of bacteria

Which of the following is a structural polysaccharide?

• Glycogen

• Chitin

• Starch

• Sucrose