BIOLOGY
4th Edition
ISBN: 9781266739606
Author: Hoefnagels
Publisher: MCG
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Chapter 31, Problem 5MCQ
Summary Introduction
Introduction:
Respiratory system is the body system whose function is to get oxygen from the environment and remove carbon dioxide from the body. The importance of the respiratory system is that it brings oxygen into the body and humans cannot live without oxygen.
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The trachea has rings of cartilage to:
a. Allow the trachea to close when air is not present
b. Keep the trachea open for continuous air flow
c. Allow the trachea to close when food is not present
d. Keep the trachea open for continuous food flow
Differentiate External from Internal respiration based on their:
1. Description
2. Location
3. Oxygen Diffusion
4. Oxygen Partial Pressure
5. Carbon Dioxide Diffusion
6. CARBON DIOXIDE PARTIAL PRESSURE
7. ACTIVE OR PASSIVE PROCESS?
8. MECHANICAL OR CHEMICAL PROCESS?
9. PRODUCTS
1. Respiration/Breathing = gas exchange
2. What process uses up oxygen and produces carbon dioxide in the tissues. Answer: Cellular
respiration
3. Know the terms: alveoli, pharynx, larynx, trachea, bronchus (bronchi), bronchiole, diaphragm,
hemoglobin, myoglobin, partial pressure
4. Function of respiratory system, function of cilia and mucus in the respiratory passageways
5. List the air passageways of the human respiratory system from nostril to alveoli?
6. Where in the respiratory system does the actual gas exchange happen?
7. How is the diaphragm and intercostal muscles involved in breathing?
8. By what process do gases (O2 and CO.) move from alveolar air space into the blood and
from blood into the interstitial fluids? Ans: Diffusion
9. What gas moves from the alveoli to the capillaries?
10. What gas moves from the muscle cells to the capillaries? (keep in mind that gases move from a
high partial pressure to low partial pressure)
11. 99% of oxygen gets transported by
_(be…
Chapter 31 Solutions
BIOLOGY
Ch. 31.1 - Prob. 1MCCh. 31.1 - Prob. 2MCCh. 31.1 - Differentiate between aerobic cellular...Ch. 31.1 - An earthworm prefers moist soil. Why does this...Ch. 31.1 - Prob. 5MCCh. 31.2 - Prob. 1MCCh. 31.2 - Prob. 2MCCh. 31.2 - Which structure prevents swallowed food from...Ch. 31.2 - Describe the relationships among the trachea,...Ch. 31.3 - What is the relationship between the volume of the...
Ch. 31.3 - Prob. 2MCCh. 31.3 - Prob. 3MCCh. 31.4 - Prob. 1MCCh. 31.4 - Prob. 2MCCh. 31.4 - Prob. 3MCCh. 31.4 - Prob. 4MCCh. 31.5 - Prob. 1MCCh. 31.5 - Prob. 2MCCh. 31 - Prob. 1MCQCh. 31 - Prob. 2MCQCh. 31 - Prob. 3MCQCh. 31 - Prob. 4MCQCh. 31 - Prob. 5MCQCh. 31 - Prob. 6MCQCh. 31 - Prob. 7MCQCh. 31 - Prob. 8MCQCh. 31 - Write a paragraph comparing four types of...Ch. 31 - Prob. 2WIOCh. 31 - Prob. 3WIOCh. 31 - Prob. 4WIOCh. 31 - How is air cleaned, warmed, and humidified before...Ch. 31 - Prob. 6WIOCh. 31 - Prob. 7WIOCh. 31 - Prob. 8WIOCh. 31 - Prob. 9WIOCh. 31 - Jumping into cold water may initiate the diving...Ch. 31 - Prob. 11WIOCh. 31 - How does blood transport most CO2? In what other...Ch. 31 - People who suffer from claustrophobia are afraid...Ch. 31 - Prob. 14WIOCh. 31 - Prob. 15WIOCh. 31 - Prob. 16WIOCh. 31 - Prob. 17WIOCh. 31 - Prob. 18WIOCh. 31 - Prob. 19WIOCh. 31 - How are the lungs similar to the stomata of...Ch. 31 - Prob. 1PITCh. 31 - Prob. 2PITCh. 31 - 3. Add terms to the concept map to explain the...
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- The respiratory system_______. a. provides body tissues with oxygen b. provides body tissues with oxygen and carbon dioxide c. establishes how many breaths are taken per minute d. provides the body with carbon dioxidearrow_forwardDuring inhalation, ________. a. the thoracic cavity expands d. the diaphragm relaxes c. atmospheric pressure declines d. the lungs deflatearrow_forwardGas moves from an area of ________ partial pressure to an area of ________ partial pressure. low; high low; low high; high high; lowarrow_forward
- A partial pressure gradient of oxygen exists between ________. a. air and lungs b. lungs and metabolically active tissues c. air at sea level and air at high altitudes d. all of the abovearrow_forwardOxygen in air must diffuse across______ to enter the blood. a. pleural sacs b. alveolar sacs c. a moist respiratory surface d. both b and carrow_forwardDescribe the function of these terms and describe where they are located: main bronchus, trachea, alveoli.arrow_forward
- In______, gas exchange occurs at the body surface and gas is distributed by diffusion alone. a. earthworm c. frogs b. flatworms d. insectsarrow_forwardOf the following, which does not explain why the partial pressure of oxygen is lower in the lung than in the external air? Air in the lung is humidified; therefore, water vapor pressure alters the pressure Carbon dioxide mixes with oxygen Oxygen is moved into the blood and is headed to the tissues Lungs exert a pressure on the air to reduce the oxygen pressure.arrow_forwardWhich is the order of airflow during inhalation? a. nasal cavity, trachea, larynx, bronchi, bronchioles, alveoli b. nasal cavity, larynx, trachea, bronchi, bronchioles, alveoli c. nasal cavity, larynx, trachea, bronchioles, bronchi, alveoli d. nasal cavity, trachea, larynx, bronchi, bronchioles, alveoliarrow_forward
- Due to its partial pressure gradient, carbon dioxide diffuses from cells into tissue fluid and into the ________; in the lungs, carbon dioxide diffuses into the ________. a. alveoli; bronchioles b. bloodstream; bronchioles c. alveoli; bloodstream d. bloodstream; alveoliarrow_forwardCases of accidental carbon monoxide poisoning occur when someone builds a charcoal fire in an enclosed area. Assuming help arrives in time, what would be the most effective treatment: placing the victim outdoors in fresh air or administering pure oxygen? Explain your answer.arrow_forwardThe inspiratory reserve volume measures the ___________ . amount of air remaining in the lung after a maximal exhalation amount of air that the lung holds amount of air that can be further exhaled after a normal breath amount of air that can be further inhaled after a normal breatharrow_forward
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