Download Respiratory System Questions

Biology I
Ms. Chen
Name:
Date:
Respiratory System Questions
1.
Which of the following statements best describes how the nose contributes to the efficient
functioning of the lungs?
A. The nose filters dust and pollen from inhaled air.
B. The nose dries air as it enters the respiratory system.
C. The nose removes excess carbon dioxide from inhaled air.
D. The nose detects the amount of oxygen in the respiratory system.
2. The concentration of which gas is higher in exhaled air than in inhaled air?
A. carbon dioxide
B. helium
C. nitrogen
D. oxygen
3. A student built a model to demonstrate how air is moved into and out of the human respiratory
system. A diagram of the student’s model is shown below.
Which of the following parts of the model is matched with the part of the respiratory system it represents?
A. plastic sheet—lung
B. balloon—larynx
C. tube 1—trachea
D. seal 2—pharynx
4. In which of the following ways does the respiratory system help to maintain homeostasis during
exercise?
A. Reserves of oxygen are built up in the alveoli.
B. The pharynx supplies glucose so that the muscles can produce ATP.
C. Breathing rate is increased to exchange oxygen and carbon dioxide more rapidly.
D. The lungs release hemoglobin so that the blood can carry more oxygen to tissues.
5.
In the human respiratory system, the contraction and relaxation of a muscle called the diaphragm
helps move air through which of the following structures?
A. artery, capillary, and vein
B. larynx, pharynx, and trachea
C. atrium, trachea, and ventricle
D. esophagus, kidney, and pharynx
6. The nose serves all the following functions except
A. providing an airway.
B. moistening inhaled air.
C. filtering dust and particles from inhaled air.
D. transferring oxygen from the air to the bloodstream.
7.
Which of the following statements best explains why oxygen diffuses from the alveoli into the
blood?
A. The diaphragm draws oxygen into the alveoli at a rapid speed.
B. Alveoli cells contain hemoglobin to transfer gases to the blood.
C. The concentration of oxygen is greater in the alveoli than in the blood.
D. Red blood cells move one at a time through the capillaries surrounding the alveoli.
Open Response
8. The human body works to keep its blood glucose level within a narrow range. The hormones
insulin and glucagon have important roles in this process: insulin decreases the blood glucose
level, and glucagon increases the blood glucose level.Many different factors, including exercise,
can affect a person’s blood glucose level.
a.
Describe how a healthy person’s blood glucose level most likely changes after 45 minutes of
intense exercise. Explain your answer.
b. Based on your answer to part (a), describe how a healthy person’s body responds to restore
homeostasis with regard to blood glucose after exercising.
c.
Describe another example of how exercise disrupts homeostasis in the body and how the body
responds to restore homeostasis.