10.2 The Process of Cellular Respiration Quiz

What product forms when glucose is broken down during glycolysis?

• 2 molecules of pyruvic acid (C3H4O3)

• 1 molecule of acetyl-CoA (C2H3O-CoA)

• 2 molecules of lactic acid (C3H6O3)

• 4 molecules of ATP (Adenosine triphosphate)

What cycle occurs in the matrix of the mitochondrion, breaking down pyruvic acid into carbon dioxide?

• The Krebs cycle

• The Calvin cycle

• The Glycolysis cycle

• The Electron Transport Chain

What is the main purpose of cellular respiration?

• To convert glucose into usable energy (ATP) for the cell.

• To break down proteins for energy production.

• To synthesize glucose from carbon dioxide and water.

• To store energy in the form of fat.

What is the chemical equation for cellular respiration?

• C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP

• C6H12O6 + 3O2 → 3CO2 + 3H2O + 2ATP

• C6H12O6 + 6O2 → 6CO + 6H2O + 6ATP

• C6H12O6 + 6O2 → 6C + 6H2O + 6O2

What is released as a byproduct of the Krebs cycle?

• Oxygen (O2)

• Carbon dioxide (CO2)

• Nitrogen (N2)

• Hydrogen (H2)

What is the role of oxygen in aerobic respiration?

• Oxygen acts as the final electron acceptor in the electron transport chain.

• Oxygen is used to produce glucose during photosynthesis.

• Oxygen is a byproduct of anaerobic respiration.

• Oxygen is required for the synthesis of fatty acids.

How many molecules of ATP are produced from one molecule of glucose during cellular respiration?

• 30 molecules of ATP

• 32 molecules of ATP

• 36 molecules of ATP

• 38 molecules of ATP

What are the three stages of aerobic cellular respiration?

• Glycolysis, Krebs cycle, Electron transport chain

• Fermentation, Glycolysis, Krebs cycle

• Krebs cycle, Electron transport chain, Lactic acid fermentation

• Glycolysis, Lactic acid fermentation, Electron transport chain

What is fermentation and when does it occur?

• Fermentation is an aerobic process that occurs in the presence of oxygen, allowing glycolysis to stop.

• Fermentation is an anaerobic process that occurs when oxygen is not available, allowing glycolysis to continue.

• Fermentation is a process that only occurs in yeast during baking.

• Fermentation is a chemical reaction that requires high temperatures to take place.

What is the significance of ATP in cellular respiration?

• ATP is the primary molecule for storing genetic information.

• ATP is the energy currency of the cell, providing energy for various cellular processes.

• ATP is a type of protein that helps in muscle contraction.

• ATP is a waste product of cellular respiration.