Carbohydrates Quiz

What are carbohydrates defined as?

• Nucleic acids

• Carbonyl compounds with hydroxyl groups

• Proteins

• Lipids

Which group of carbohydrates cannot be hydrolyzed into smaller carbohydrates?

• Oligosaccharides

• Disaccharides

• Polysaccharides

• Monosaccharides

What is the simplest aldose?

• Dihydroxyacetone

• Glucose

• Fructose

• Glyceraldehyde

Which type of sugar has an aldehyde group at one end?

• Glucose

• Fructose

• Sucrose

• Maltose

What is the function of cellulose in plant cell walls?

• Recognition and signaling

• Structure and rigidity

• Carbon source

• Energy storage

What is the full name of sucrose?

• a-D-glucopyranosyl-(12)-b-D-fructopyranose

• b-D-galactopyranosyl-(1 4)-a-D-glucopyranose

• a-D-glucopyranosyl-(14)-a-D-glucopyranose

• b-D-fructopyranosyl-(12)-a-D-glucopyranose

Which sugar forms an intra-molecular hemiacetal?

• Maltose

• Glucose

• Fructose

• Sucrose

What is the role of glycogen in animals?

• Strength and rigidity of cell walls

• Energy storage

• Recognition and signaling

• Carbon source

What is the stereochemistry of D-sugars?

• OH to the RIGHT

• OH below the ring

• OH to the LEFT

• OH above the ring

What is the purpose of glycosidic bonds?

• Joining sugars together

• Structure and rigidity

• Recognition and signaling

• Energy storage