1 MULTIPLE RESPONSE: Choose the letter of the correct answer on your answer sheet
1. What is the of Job respiratory system? A. The body's blood transporting system
C. The body's breathing system
B. The body's food processing system D. The body's nervous system
2. What is the purpose of the little hair Inside the nose?
A. To fight Infections
C. To keep dust out of the lunga
B. To keep water out of the lungs
D. To cause us to sheeze
3. Oxygen from the lungs moves into the bloodstream through
A. A large artery In the heart
C Peripheral nerve fibers
B. A large veln in the heart
D. Lymphatio vessels of the lunga
4. When we breathe in, we Inhale many gases, including oxygen. What happens to the gases that the body can't use?
A. They are converted into oxygen by the
C. They are absorbed into the cells of the lungs body
B. They are exhaled
D. They are released as fart
6. The body's calls need food, water, chemicals and to go on living
A. Carbon dloxide
C. Oxygen
B. Hellum
D. fruits
6. What is the best description of a capillary?
A. Smallest of the blood vessels, highways of the circulatory system, bring nutrients and CO2 to tissues,
B. Largest of the blood vessels, side streets of the circulatory system, bring CO2 to tissues and absorb O2C
C. Smallest of the blood vessels, side streets of the circulatory system, bring CO2 to tissues and absorb 02 D. Smallest of the blood vessels, side streets of the circulatory system, bring nutrients and O2 to tlasues and absorb CO2 and waste
7. When we inhale, air enters the body and travels to the lungs
A. Through the nose and windpipe
B. Through the mouth and nose
C. Through the mouth and digestive system
D. Through the oesophagus and trachea 8. What important activities take place in the lungs? A. Food is extracted B. Oxygen is exchanged for carbon dioxide C. Windpipe is exchange for the larynx D. Gaseous is filtered from the blood
9. From what source do cell get their food?
A. Carbon Dioxide
C. Blood
B. Oxygen
D. Other Cell
10. Why is oxygen important to blood and to the cells?
A. Oxygen helps the blood to clot.
B. Oxygen is not important - carbon dioxide is the most Important substance to the body
C. Oxygen is necessary for cell growth and energy,
D. Oxygen brings food to the cells,​