Biomolecules and Their Functions Quiz

What are amino acids?

• Large organic molecules made of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur.

• Small molecules that are the building blocks of protein.

• Energy-rich organic compounds, such as fats, oils, and waxes.

• A compound made up of carbon, hydrogen, and oxygen atoms.

Which of the following is a major source of energy for the human body?

• Lipid

• Protein

• Carbohydrate

• Nucleic acid

What is a compound?

• A substance made up of atoms of two or more different elements joined by chemical bonds.

• A macromolecule containing hydrogen, oxygen, nitrogen, carbon, and phosphorus.

• A type of protein that speeds up a chemical reaction in a living thing.

• A substance that cannot be broken down into simpler substances.

What does DNA stand for?

• Deoxyribonucleic acid

• Ribonucleic acid

• Protein

• Lipid

Which of the following cannot be broken down into simpler substances?

• Compound

• Element

• Enzyme

• Lipid

What is the role of an enzyme?

• It is a major source of energy for the human body.

• It speeds up a chemical reaction in a living thing.

• It carries genetic information.

• It is a building block of protein.

Which of the following are energy-rich organic compounds made of carbon, hydrogen, and oxygen?

• Proteins

• Nucleic acids

• Lipids

• Enzymes

What is a nucleic acid?

• A compound made up of carbon, hydrogen, and oxygen atoms.

• A macromolecule containing hydrogen, oxygen, nitrogen, carbon, and phosphorus.

• A type of protein that speeds up a chemical reaction in a living thing.

• A small molecule that is the building block of protein.

Which of the following is an example of a protein?

• Water

• Salt

• Meat

• Sugar

What role does RNA play in the cell?

• It is the genetic material that carries information about an organism.

• It plays an important role in the production of proteins and can be found in the cytoplasm.

• It is a major source of energy for the human body.

• It is a building block of protein.