Quiz on Cellular Metabolism and Bioenergetics

What is the primary function of cellular respiration?

• To produce glucose

• To break down glucose to produce ATP

• To synthesize proteins

• To store energy as fat

Which molecule is known as the energy currency of the cell?

• FADH2

• ATP

• NADH

• Glucose

What are the three main steps of cellular respiration?

• Glycolysis, photosynthesis, and electron transport

• Glycolysis, citric acid cycle, and oxidative phosphorylation

• Glycolysis, oxidative phosphorylation, and fermentation

• Glycolysis, Krebs cycle, and fermentation

What is produced during glycolysis?

• 2 ATP and 2 NADH

• 4 ATP and 2 NADH

• 2 ATP and 4 NADH

• 4 ATP and 4 NADH

Which process occurs in the absence of oxygen?

• Aerobic respiration

• Krebs cycle

• Anaerobic respiration

• Electron transport chain

What is the role of ATP synthase?

• To break down glucose

• To transport electrons

• To oxidize NADH

• To synthesize ATP from ADP and Pi

Which of the following is a product of the Krebs cycle?

• Oxygen

• Lactic acid

• Glucose

• Carbon dioxide

What is the main purpose of the electron transport chain?

• To convert pyruvate to acetyl-CoA

• To generate ATP through oxidative phosphorylation

• To produce glucose

• To synthesize fatty acids

Which molecule is formed when ATP loses a phosphate group?

• Adenosine diphosphate (ADP)

• Adenosine monophosphate (AMP)

• Adenosine triphosphate (ATP)

• Adenosine

What is the net gain of ATP from glycolysis?

• 36 ATP

• 38 ATP

• 4 ATP

• 2 ATP