Response to Exercise

• What happens to the heart rate during exercise?

  It increases
• What happens to the breathing rate during exercise?

  It increases
• What substance, when increased, can cause muscle aches during exercise?

  Lactic acid
• What happens to the breathing volume during exercise?

  It increases
• During exercise, what does the body increase its demand of?

  Energy
• To get energy, muscle cells use what process?

  Respiration
• Compared to other cells, what do muscle cells contain more of?

  Mitochondria
• What do muscle cells store as glycogen?

  Glucose
• Why does heart rate increase during exercise?

  To pump more oxygenated blood
• Why does breathing rate increase during exercise?

  To increase the amount of oxygen
• Why does breathing volume increase during exercise?

  To increase the amount of oxygen
• How do you calculate percentage change?

  (Difference in readings / original reading) * 100