Enzymes Quiz

What are enzymes?

• Nucleic acids

• Proteins

• Carbohydrates

• Lipids

What is a catalyst?

• A substance that speeds up the rate of a chemical reaction

• A substance that has no effect on chemical reactions

• A substance that changes its form during a chemical reaction

• A substance that slows down chemical reactions

What is activation energy?

• The energy required to stop a chemical reaction

• The energy stored in the reactants

• The energy needed to start a chemical reaction

• The energy released during a chemical reaction

What is a substrate?

• The catalyst of a chemical reaction

• The reactant of a chemical reaction

• The energy required for a chemical reaction

• The product of a chemical reaction

What is the active site?

• The site on the enzyme where the substrates bind

• The site on the enzyme where the products bind

• The site on the enzyme where the catalysts bind

• The site on the enzyme where the energy is stored

How are enzymes affected by the reaction?

• They are destroyed by the reactions

• They are converted into substrates by the reactions

• They are not changed by the reactions

• They are changed by the reactions