AQA - Biology - Exercise Response

What is the primary effect of exercise on heart rate?

• Decreases heart rate

• Increases heart rate

• No change in heart rate

• Heart rate becomes irregular

How do muscles respond to exercise in terms of energy demand?

• Muscles require less energy

• Muscles require more energy

• Muscles require the same amount of energy

• Muscles stop requiring energy

Which type of respiration is primarily used during intense physical activity?

• Aerobic respiration

• Anaerobic respiration

• Photosynthesis

• Fermentation

What is the main energy molecule produced in muscles during exercise?

• Glucose

• ATP (Adenosine Triphosphate)

• DNA

• RNA

How does regular exercise impact metabolism?

• Slows down metabolism

• Speeds up metabolism

• No effect on metabolism

• Stops metabolism

What is the process called when the body returns to its resting state after exercise?

• Metabolism

• Recovery

• Respiration

• Digestion

During recovery, what happens to the lactic acid that accumulates in muscles?

• It is converted back to glucose in the liver

• It remains in the muscles

• It is excreted through sweat

• It is converted to fat

Which of the following is a common immediate effect of exercise on the respiratory system?

• Decreased breathing rate

• Increased breathing rate

• No change in breathing rate

• Breathing stops