BIO 102 General Biology II Updated Edition (Tidewater Community College)
3rd Edition
ISBN: 9781259614064
Author: Tidewater Community College
Publisher: MCG CUSTOM
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Chapter 31.4, Problem 3MC
Summary Introduction
To describe:
The diffusion gradients for
Concept introduction:
The lungs receive oxygen from the air during the process of inhalation. This oxygen gets transferred to the bronchi, bronchioles and alveoli of the lungs where the exchange of this gas takes place with carbon dioxide across the capillary network and epithelial cells in the lungs.
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Describe the partial pressure gradients for O2 and CO2.
Describe the mode of transport of O2 and CO2, from lungs to tissues and back
The alveoli and blood capillaries make up the gas exchange surface of the lungs, and as the arrows in the diagram (Figure 3) illustrate, this is where oxygen and carbon dioxide move in a particular direction.
a) With reference to simple diffusion, explain why oxygen and carbon dioxide move in the directions illustrated by the arrows.
b) The gas exchange surface is specifically adapted to maximise the transport of oxygen and carbon dioxide in these illustrated directions. Explain at least three of these adaptations.
Chapter 31 Solutions
BIO 102 General Biology II Updated Edition (Tidewater Community College)
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 - Prob. 10WIOCh. 31 - How does blood transport most CO2? In what other...Ch. 31 - People who suffer from claustrophobia are afraid...Ch. 31 - Prob. 13WIOCh. 31 - Prob. 14WIOCh. 31 - Prob. 15WIOCh. 31 - Prob. 16WIOCh. 31 - Prob. 17WIOCh. 31 - Prob. 18WIOCh. 31 - How are the lungs similar to the stomata of...Ch. 31 - Prob. 20WIOCh. 31 - Prob. 1PITCh. 31 - Prob. 2PITCh. 31 - 3. Add terms to the concept map to explain the...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Explain what a partial pressure gradient is and how such gradients figure in gas exchange.arrow_forwardHow does hemoglobin help maintain the oxygen partial pressure gradient during gas transport in the body?arrow_forwardWhat drives oxygen from the air spaces in alveoli, through tissue fluid, and across capillary epithelium? What drives carbon dioxide in the opposite direction?arrow_forward
- Outline the process of gas exchangearrow_forwardWhat generates the diffusion gradients for oxygen and carbon dioxide in the tissues?arrow_forwardThe diffusion coefficient of a gas is a constant and is not affected by disease states or treatment options. In contrast the other factors that determine gas diffusion through the respiratory membrane is affected by changes.Name the factors that can cause an increase in the diffusion rate through the respiratory membrane and provide detailed examples of conditions that will cause this increase.arrow_forward
- Discuss those factors that infl uence the rate of diffusion across the blood-gas interface in the lung.arrow_forwardOxygen and carbon dioxide diffuse across our respiratory surface into and out of the blood via simple diffusion. The respiratory membrane is thin so gases diffuse only a short distance through the liquid and into the blood. Fluid buildup in the lungs increases the distance through the liquid medium. How does this impact the concentration of oxygen in the blood? Explain.arrow_forwardDescribe the relationship between the partial pressure of oxygen and the binding of oxygen to hemoglobin.arrow_forward
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