Carbohydrates and Their Types

What are the primary elements found in carbohydrates?

• Carbon, Hydrogen, Nitrogen

• Carbon, Hydrogen, Oxygen

• Carbon, Oxygen, Nitrogen

• Hydrogen, Oxygen, Nitrogen

Which of the following is NOT a monosaccharide?

• Sucrose

• Fructose

• Galactose

• Glucose

What distinguishes an alpha glucose from a beta glucose?

• The presence of oxygen

• The direction of the hydroxy group on carbon 1

• The number of carbon atoms

• The number of hydrogen atoms

Which disaccharide is formed by linking two glucose molecules?

• Lactose

• Sucrose

• Maltose

• Fructose

What type of bond links monosaccharides in a disaccharide?

• Peptide bond

• Hydrogen bond

• Ionic bond

• Glycosidic bond

What is the main characteristic of oligosaccharides?

• They are only found in plants

• They consist of short chains of monosaccharides

• They are made up of two monosaccharides

• They consist of long chains of monosaccharides

At what point does an oligosaccharide become a polysaccharide?

• When it contains more than 40 monosaccharides

• When it contains more than 30 monosaccharides

• When it contains more than 20 monosaccharides

• When it contains more than 10 monosaccharides

Which polysaccharide is a storage form of glucose in animals?

• Dextran

• Cellulose

• Starch

• Glycogen

What type of bond is found in cellulose that humans cannot digest?

• Beta 1-6 glycosidic bond

• Beta 1-4 glycosidic bond

• Alpha 1-6 glycosidic bond

• Alpha 1-4 glycosidic bond

Which polysaccharide is a structural component in plants?

• Starch

• Dextran

• Glycogen

• Cellulose