Cellular Respiration Quiz

Which of the listed essential molecules do all living cells need to stay alive? Select all the correct answers.

• Amino acids

• Glucose

• Oxygen

• Carbon dioxide

What process do all cells carry out to release energy?

• Anabolic synthesis

• Aerobic respiration

• Photosynthesis

• Transpiration

Complete the word equation for the process that cells carry out to release energy: Glucose + Oxygen -> Carbon dioxide + Water (+ ENERGY)

What is the chemical symbol for glucose?

• H2O

• O2

• C6H12O6

• CO2

Complete the statement describing the changes that occur during exercise. During exercise the muscles contract more often and will need more energy. To release that energy, the rate of aerobic respiration increases. Muscles cells will need more glucose and oxygen.

What do muscle cells produce if not enough oxygen is delivered for respiration?

• Carbon dioxide

• Lactic acid

• Water

• Protein

What is the term used to describe the process when respiration occurs without oxygen?

• Anaerobic respiration

• Anabolic respiration

• Aerobic respiration

• Catabolic respiration

What happens to the heart rate during exercise?

• Doesn't change

• Decreases

• Stops

• Increases

Why does our breathing remain elevated after exercise?

• Continue to deliver oxygen to break down lactic acid

• To fill up the muscle cells with oxygen for next time we exercise

• The brain hasn’t realised we have stopped exercising

• Just in case we start exercising again

What term is used to describe the need to break down lactic acid?

• Oxygen debt

• Oxygen deficit

• Oxygen credit

• Oxygen payback