Quiz on Proteins

What role do proteins play in chemical reactions?

• Slow them down

• Stop them

• Speed them up

• Reverse them

Proteins are involved in communicating signals within and between what?

• Organs

• Cells

• Systems

• Tissues

Proteins are involved in nearly every function of your body, including which of the following?

• Vision

• Digestion

• Muscle contraction

• Breathing

What is one of the functions of digestive enzymes, which are proteins?

• Absorb nutrients

• Facilitate chemical reactions

• Store energy

• Transport oxygen

How do antibodies, which are proteins, support the body?

• By providing energy

• By supporting immune function

• By storing fat

• By transporting oxygen

What are nucleotides?

• Proteins that make up enzymes

• Repeating subunits that make up nucleic acids

• Lipids that store energy

• Carbohydrates that provide structure

What are the three units of a nucleotide?

• Phosphate, nitrogenous base, and sugar

• Phosphate, lipid, and protein

• Sugar, protein, and lipid

• Nitrogenous base, lipid, and carbohydrate

What type of macromolecules are nucleic acids?

• Proteins

• Lipids

• Carbohydrates

• Biological macromolecules

Which of the following elements is NOT found in nucleotides?

• Calcium

• Carbon

• Nitrogen

• Phosphorus

What sticks out from the nucleotide chain and is available to bond with bases in other nucleic acids?

• Phosphate

• Ribose

• Nitrogenous base

• DNA