Bioenergetics Quiz

What is the primary function of enzymes in metabolic pathways?

• To store genetic information

• To increase the temperature of reactions

• To act as catalysts

• To provide energy directly

Which of the following is a type of potential energy?

• Chemical energy

• Mechanical energy

• Kinetic energy

• Thermal energy

What does the first law of thermodynamics state?

• Energy can be created and destroyed

• Energy can only be converted from one form to another

• Energy is always lost in reactions

• Energy is only found in living organisms

Which metabolic pathway converts glucose into pyruvate?

• Citric acid cycle

• Glycolysis

• Gluconeogenesis

• Fermentation

What is the role of ATP in cellular metabolism?

• It catalyzes metabolic reactions

• It acts as an energy currency

• It stores genetic information

• It is a structural component of cells

Which of the following processes is an example of catabolism?

• Formation of DNA

• Synthesis of proteins

• Photosynthesis

• Breakdown of glucose

What is the primary source of energy for phototrophs?

• Electrical energy

• Heat energy

• Light energy

• Chemical bonds

Which of the following statements about entropy is true?

• Entropy decreases in all processes

• Entropy is a measure of disorder

• Entropy is only relevant in biological systems

• Entropy is constant in closed systems

What is the main function of coenzyme A in metabolism?

• To donate electrons

• To synthesize proteins

• To store energy

• To activate metabolic pathways

Which of the following is a characteristic of anabolic reactions?

• They release energy

• They require energy input

• They occur spontaneously

• They break down molecules