Biology: Heart and Lungs - Making Them Work

Objectives

• Students will determine the effect of exercise on heart rate, respiratory rate, and air flow in and out of the lungs.
• Students will correlate the fitness level of an individual with amount of daily exercise.

Vocabulary

• amplitude
• frequency
• heart rate
• respiratory rate

About the Lesson

In this lesson students will study the effect of exercise on heart rate, respiratory rate and air flow in and out of the lungs.
As a result, students will:

• Analyze graphs that represent how exercise changes vital signs of the cardiovascular and respiratory systems.
• Relate the shape of the graph to changing levels of CO₂ that occur as a result of exercise.
• Make predictions on how daily exercise affects physical fitness.