12.Exercise & Metabolism Quiz

What happens to respiration when you exercise?

• It remains the same

• It increases

• It decreases

• It stops

What is a requirement for aerobic respiration?

• Lactic acid

• Oxygen

• Glucose

• Carbon dioxide

What happens to breathing rate during exercise?

• It stops

• It stays the same

• It decreases

• It increases

What is produced during anaerobic respiration?

• Glucose

• Oxygen

• Carbon dioxide

• Lactic acid

What causes a 'stitch' during exercise?

• Dehydration

• Lactic acid buildup

• Oxygen debt

• Low blood sugar

What is oxygen debt?

• The additional oxygen needed to remove lactic acid

• The lack of oxygen in the lungs

• The amount of oxygen consumed during rest

• The oxygen required for aerobic respiration

What happens to heart rate after exercise?

• It stops

• It decreases immediately

• It stays high until lactic acid levels fall

• It remains the same

What is cardiac output?

• The volume of blood pumped out of a ventricle per minute

• The number of heartbeats per minute

• The amount of oxygen in the blood

• The amount of blood in the heart

How can you measure heart rate?

• By checking blood pressure

• By measuring pulse at the wrist

• By using a thermometer

• By counting breaths

What is the effect of prolonged exercise on muscles?

• Improved flexibility

• Enhanced endurance

• Muscle fatigue

• Increased strength