Exploring Carbohydrates

Which of the following best describes the relationship between monomers and polymers in carbohydrates?

• Monomers are made by joining polymers together.

• Polymers are made by joining monomers together.

• Monomers and polymers are unrelated.

• Polymers break down to form monomers only in proteins.

If two monosaccharides undergo a dehydration synthesis reaction, what is the resulting molecule called?

• Monomer

• Dimer (Disaccharide)

• Polymer

• Amino acid

• It contains only carbon and hydrogen.

• It contains carbon, hydrogen, and oxygen in a specific ratio.

• It contains nitrogen.

• It is a protein.

Tags

NGSS.HS-LS1-6

Which of the following is an example of a carbohydrate polymer and its function?

• Cellulose; provides structural support in plant cell walls

• Hemoglobin; transports oxygen in blood

• Insulin; regulates blood sugar

• DNA; stores genetic information

Which set of atoms is always present in all carbohydrates?

• Carbon, hydrogen, oxygen

• Carbon, nitrogen, oxygen

• Hydrogen, nitrogen, sulfur

• Carbon, phosphorus, oxygen

Tags

NGSS.HS-LS1-6

If you were to break down starch into its monomer units, which molecule would you obtain?

• Fructose

• Glucose

• Sucrose

• Lactose

Which of the following best explains why glycogen is important for animals?

• It is used for long-term energy storage in plants.

• It is used for short-term energy storage in animals.

• It forms the exoskeleton of insects.

• It is a type of protein.

Tags

NGSS.HS-LS1-7

Which of the following pairs correctly matches a carbohydrate dimer with its monomer components?

• Sucrose: glucose + fructose

• Maltose: glucose + galactose

• Lactose: glucose + glucose

• Cellulose: glucose + fructose

If a student is given a sample of an unknown macromolecule and finds it contains only carbon, hydrogen, and oxygen in a 1:2:1 ratio, which macromolecule is it most likely to be?

• Protein

• Lipid

• Carbohydrate

• Nucleic acid

Which of the following statements best describes the function of carbohydrates in living organisms?

• They store genetic information.

• They provide energy and structural support.

• They catalyze chemical reactions.

• They transport oxygen.

Tags

NGSS.MS-LS2-3