BIOLOGY
4th Edition
ISBN: 9781266739606
Author: Hoefnagels
Publisher: MCG
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Chapter 31, Problem 2PIT
Summary Introduction
To add:
Concept introduction:
The goal of breathing is to deliver oxygen to the body and to take away carbon dioxide. The lungs are the main organs of the respiratory system. The red blood cells are responsible for picking up the oxygen in the lungs and carrying the oxygen to all the body cells that need it.
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11. Which of the following statement is TRUE about oxygen transport?
I. Oxygen diffuses down a pressure gradient from the lungs into the blood plasma to red blood
cells binds to hemoglobin.
II. Carbon dioxide diffuses down its partial pressure gradient from the tissues into the blood
plasma and red blood cells to air in alveoli. 7% is dissolved plasma, 23% binds with hemoglobin
to form carbaminohemoglobin and 70% is in bicarbonate form.
IlII. Hemoglobin gives up its oxygen in tissues where partial pressure of oxygen is low, blood is
warmer, partial pressure of carbon dioxide is higher and pH is lower; these four conditions
occur in tissues with high metabolisms.
A. I but not II
B. I and II only
C. I and III only
D. II and III only
12. Mario is a change smoker. One day, he suffered from difficult breathing immediately he went to
the hospital for a check-up. The findings of the doctor for Mario's condition was emphysema. Is the
doctor correct of his findings?
A. No, because difficult…
7.How does oxygen and carbon dioxide enter and leave the lung capilliaries respectively? (Multiple choice)
Diffusion
Active transport
Facilitated Diffusion
Exocytosis
2. Identify three ways diffusion rates are facilitated across alveoli and into the blood and explain
how it increases diffusion rates.
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. provides body tissues with oxygen provides body tissues with oxygen and carbon dioxide establishes how many breaths are taken per minute provides the body with carbon dioxidearrow_forwardWhich of the following are structural features of the trachea? C-shaped cartilage smooth muscle fibers cilia all of the abovearrow_forward12.Which is also known as the "voice box" which regulates the air flow into the lungs? Read and analyze the question and choices CAREFULLY; more importantly, ALWAYS CHOOSE the BEST answer. Bronchioles Larynx Trachea Pharynxarrow_forward
- 2. Breathing, or ventilation, is a cyclic process consisting of two stages, inspiration and expiration. Air only moves when there is a pressure gradient, moving from high pressure to low pressure. To ventilate, we must create pressure gradients that drive air through our airways into or out of our lungs. We need to change the air pressure in our alveoli. We achieve this using the principle described in Boyle's Law. Boyle's Law states that when temperature is held constant, pressure is inversely related to volume – that is, when volume of a chamber increases, air pressure in that chamber decreases, and vice versa. By changing the size (volume) of the thoracic cage, we change pressure in our alveoli. To inhale, we must make our thoracic cage larger. To exhale, we must make our thoracic cage smaller. Label the diagram below, showing the muscles of our chest wall and diaphragm: (3 (a) (b) (c) (d)arrow_forward2. Breathing, or ventilation, is a cyclic process consisting of two stages, inspiration and expiration. Air only moves when there is a pressure gradient, moving from high pressure to low pressure. To ventilate, we must create pressure gradients that drive air through our airways into or out of our lungs. We need to change the air pressure in our alveoli. We achieve this using the principle described in Boyle's Law. Boyle's Law states that when temperature is held constant, pressure is inversely related to volume chamber increases, air pressure in that chamber decreases, and vice versa. By changing the size (volume) of the thoracic cage, we change pressure in our alveoli. To inhale, we must make our thoracic cage larger. To exhale, we must make our thoracic cage smaller. Label the diagram below, showing the muscles of our chest wall and diaphragm: that is, when volume of a (a) (b) (c) (d) 33arrow_forward1. 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…arrow_forward
- 2.Anatomyarrow_forward3arrow_forward1. What else do organisms need to acquire from the environment aside from nutrition? Why? 2. What gas is considered as a metabolic waste product of cellular respiration? How does it leave the organism's body? 3. Cite some structures in plants and animals that allow the gas exchange. 4. Enumerate some respiratory problems encountered by humans that alter the normal process of gas exchange.arrow_forward
- 1. Considering a patient with severe pneumonia, resulting in impaired exchange of O2 and CO2 between the air and blood in the lungs? Would the oxygen (O2) levels in the blood be: (a) Normal (b) below normal (c) elevated 2. With respect to item #1, would the CO2 levels in the same patient’s blood be ? (a) Normal (b) below normal (c) elevated 3. With respect to item #1 and 2, assuming that other compensatory measures have not yet had time to act, what would happen to the patient’s blood considering thatCO2 reacts with water to form carbonic acid? (a) have a normal pH (b) be too acidic (c) not be acidic enough (that is, be too alkaline)arrow_forward17. When a person exercises, the rate of cellular respiration increases to supply the body with more energy in the form of ATP. Mitochondria require oxygen to carry out cellular respiration. Describe how the respiratory, circulatory, and muscular systems interact to transport a molecule of oxygen from the air to a mitochondrion. Be sure to discuss all three systems in your response.arrow_forward3. Compare and contrast the conducting and respiratory zones.arrow_forward
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