Respiratory System -1

What is the function of breathing?

• Transporting oxygen to the body's cells

• Clearing the system of carbon dioxide

• Both A and B

• None of the above

Which system is responsible for controlling breathing?

• Nervous system

• Circulatory system

• Respiratory system

• Digestive system

What happens when the diaphragm flattens and the intercostal muscles contract?

• Lungs deflate

• Air is expelled from the lungs

• Lungs expand

• Carbon dioxide is released

What are the tiny air sacks at the end of bronchioles called?

• Alveoli

• Capillaries

• Bronchi

• Trachea

What is the purpose of hemoglobin in the red blood cells?

• Transporting oxygen

• Transporting carbon dioxide

• Both A and B

• None of the above

What is the basic process by which oxygen and carbon dioxide are exchanged in the lungs?

• Diffusion

• Osmosis

• Active transport

• Filtration

How many times do the lungs inhale and exhale in a minute?

• 5-10 times

• 10-15 times

• 15-20 times

• 20-25 times

What is the process by which oxygen and carbon dioxide are exchanged in the lungs?

• Diffusion

• Osmosis

• Active transport

• Filtration

What is the purpose of hemoglobin in the red blood cells?

• Transporting oxygen

• Transporting carbon dioxide

• Both A and B

• None of the above

What are the small air sacs at the end of bronchioles called?

• Alveoli

• Capillaries

• Bronchi

• Trachea