year 8 oxygen debt

In order to recover the fatigue, the lactic acid is...

• taken to muscles

• taken away from muscles

• converted to galactose

• converted to glucose

An oxygen debt occurs in muscles when...

• more carbon dioxide has been produced

• the breathing rate increases

• anaerobic respiration has taken place

• the pulse rate increases

An oxygen debt occurs in muscles when...

• more carbon dioxide has been produced

• the breathing rate increases

• anaerobic respiration has taken place

• the pulse rate increases

The extra oxygen needed is to oxidise lactic acid into...

• carbon dioxide and oxygen

• oxygen and water

• carbon dioxide and water

• carbon dioxide, water and oxygen

To repay the oxygen debt, we need to take in deep, gasping breaths at the end of physical activity

• True

• False

What does it mean for something to be anaerobic?

• It requires CO2
• It does not require CO2
• It requires oxygen
• It does not require oxygen

What are the products of aerobic respiration?

• Glucose and oxygen
• Carbon dioxide and water
• Lactic acid
• Carbon monoxide

The correct word equation for aerobic respiration is

• carbon dioxide + water (+ energy) → glucose + oxygen

• water + oxygen → carbon dioxide + glucose (+ energy)

• glucose + oxygen → carbon dioxide + water (+ energy)

• glucose + water → carbon dioxide + water (+ energy)

What type of respiration requires oxygen?

• Aerobic

• Anaerobic

Which of the below is a consequence of lactic acid production?

• Increased flexibility of muscles

• Increased strength

• Increased muscular pain & fatigue