Ch. 6 Exploring Energy and Enzymes Quiz

Which of the following is the primary energy currency of the cell?

• DNA

• ATP

• Glucose

• NADH

What is the term for a substance that speeds up a chemical reaction without being consumed by the reaction?

• Substrate

• Enzyme

• Product

• Inhibitor

Which law states that energy cannot be created or destroyed, only transformed?

• Law of Conservation of Mass

• First Law of Thermodynamics

• Second Law of Thermodynamics

• Law of Entropy

What is the name of the reactant that an enzyme acts upon?

• Product

• Substrate

• Catalyst

• Inhibitor

Which of the following best describes metabolism?

• The breakdown of food only

• The sum of all chemical reactions in a cell

• The process of photosynthesis

• The movement of molecules across a membrane

Which of the following is an example of potential energy?

• Heat released from a reaction

• Chemical bonds in glucose

• Light energy from the sun

• Movement of ions across a membrane

Which of the following best describes an exergonic reaction?

• Requires energy input

• Releases energy

• Is always non-spontaneous

Which factor does NOT affect enzyme activity?

• Temperature

• pH

• Substrate concentration

• Color of the enzyme

What is the main function of a coenzyme in enzymatic reactions?

• To act as a substrate

• To assist the enzyme in catalysis

• To inhibit the enzyme

• To denature the enzyme