Edexcel A level Biology Respiration Quiz

What is the first step of glycolysis?

• Glucose phosphorylation

• Glucose dephosphorylation

• Glucose oxidation

• Glucose hydrolysis

What are the end products of glycolysis?

• Pyruvate

• Lactic acid

• ATP

• Glucose

Where does the Krebs cycle take place in the cell?

• Mitochondria

• Nucleus

• Cytoplasm

• Endoplasmic reticulum

What is the net ATP production in the Krebs cycle?

• 10 ATP molecules

• 5 ATP molecules

• 2 ATP molecules

• 0 ATP molecules

Which molecule is the final electron acceptor in the electron transport chain?

• nitrogen

• glucose

• oxygen

• carbon dioxide

What is the role of oxygen in the electron transport chain?

• Final electron acceptor

• Regulates carbon dioxide levels

• Initiates glycolysis

• Produces ATP

What is the end product of anaerobic respiration in animal cells?

• Glucose

• Lactic acid

• Ethanol

• Carbon dioxide

What is the end product of anaerobic respiration in plant cells?

• Ethanol and carbon dioxide

• Oxygen and water

• Glucose and oxygen

• Lactic acid and carbon dioxide

What is the overall equation for aerobic respiration?

• C6H12O6 + 6O2 → 6CO2 + 6H2O

• C6H12O6 + 6O2 → 6CO2 + 6H2O + NADH

• C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP

• 6CO2 + 6H2O → C6H12O6 + 6O2

Where does aerobic respiration take place in the cell?

• Mitochondria

• Nucleus

• Golgi apparatus

• Endoplasmic reticulum