Name: _____________________________ Date: ______________________________ Investigate a claim linking height to lung volume. Know Apply Ideas In gas exchange, oxygen and carbon Explain how exercise, smoking and asthma dioxide move between alveoli and the affect the gas exchange system. blood. Oxygen is transported to cells for aerobic respiration and carbon Explain how the parts of the gas exchange dioxide, a waste product of respiration, system are adapted to their function. is removed from the body. Explain observations about changes to Breathing occurs through the action of breathing rate and volume. muscles in the ribcage and diaphragm. The amount of oxygen required by Explain how changes in volume and pressure body cells determines the rate of inside the chest move gases in and out of the breathing. lungs. Key words Breathing: The movement of air in and out of the lungs. Trachea (windpipe): Carries air from the mouth and nose to the lungs. Bronchi: Two tubes which carry air to the lungs. Bronchioles: Small tubes in the lung. Alveoli: Small air sacs found at the end of each bronchiole. Ribs: Bones which surround the lungs to form the ribcage. Diaphragm: A sheet of muscle found underneath the lungs. Lung volume: Measure of the amount of air breathed in or out.
Name: _____________________________ Date: ______________________________ Investigate a claim linking height to lung volume. Know Apply Ideas In gas exchange, oxygen and carbon dioxide move between alveoli and the blood. Oxygen is transported to cells for aerobic respiration and carbon dioxide, a waste product of respiration, is removed from the body. Explain how exercise, smoking and asthma affect the gas exchange system. Explain how the parts of the gas exchange system are adapted to their function. Breathing occurs through the action of muscles in the ribcage and diaphragm. The amount of oxygen required by body cells determines the rate of breathing. Explain observations about changes to breathing rate and volume. Explain how changes in volume and pressure inside the chest move gases in and out of the lungs. Key words Breathing: The movement of air in and out of the lungs. Trachea (windpipe): Carries air from the mouth and nose to the lungs. Bronchi: Two tubes which carry air to the lungs. Bronchioles: Small tubes in the lung. Alveoli: Small air sacs found at the end of each bronchiole. Ribs: Bones which surround the lungs to form the ribcage. Diaphragm: A sheet of muscle found underneath the lungs. Lung volume: Measure of the amount of air breathed in or out.