BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 27.8, Problem 1MC
Summary Introduction
To describe:
The O2 and CO2 diffusion gradient in the lungs and the rest of the body.
Introduction:
Oxygen is one of the most important gases needed by living organisms for their survival. Carbon dioxide is the gaseous waste material that is produced by the cells during different
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Oxygen 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.
Describe the mode of transport of O2 and CO2, from lungs to tissues and back
Write the mechanism for the transport of CO2 from cellular respiration sites to the lungs.Describe the process including where various steps take place.
Chapter 27 Solutions
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
Ch. 27.1 - What are the components of blood?Ch. 27.1 - Prob. 2MCCh. 27.1 - Prob. 3MCCh. 27.1 - Prob. 4MCCh. 27.3 - What is the cardiovascular system?Ch. 27.3 - Prob. 2MCCh. 27.4 - Prob. 1MCCh. 27.4 - Prob. 2MCCh. 27.4 - Prob. 3MCCh. 27.4 - How does exercise affect the circulatory system?
Ch. 27.5 - Prob. 1MCCh. 27.5 - Prob. 2MCCh. 27.5 - Prob. 3MCCh. 27.6 - Prob. 1MCCh. 27.6 - Prob. 2MCCh. 27.6 - Prob. 3MCCh. 27.6 - Prob. 4MCCh. 27.7 - Prob. 1MCCh. 27.7 - Describe the events of one respiratory cycle.Ch. 27.7 - Prob. 3MCCh. 27.8 - Prob. 1MCCh. 27.8 - Prob. 2MCCh. 27.8 - Prob. 3MCCh. 27 - Prob. 1MCQCh. 27 - Prob. 2MCQCh. 27 - Prob. 3MCQCh. 27 - Prob. 4MCQCh. 27 - Prob. 5MCQCh. 27 - Prob. 6MCQCh. 27 - Prob. 7MCQCh. 27 - Prob. 1WIOCh. 27 - Prob. 2WIOCh. 27 - Prob. 3WIOCh. 27 - Describe the events that occur during one cardiac...Ch. 27 - Prob. 5WIOCh. 27 - Prob. 6WIOCh. 27 - Explain how a sphygmomanometer blood pressure...Ch. 27 - Prob. 8WIOCh. 27 - Prob. 9WIOCh. 27 - Prob. 10WIOCh. 27 - Prob. 11WIOCh. 27 - Prob. 12WIOCh. 27 - Prob. 13WIOCh. 27 - Prob. 14WIOCh. 27 - Use the Internet to learn more about disorders of...Ch. 27 - Prob. 2SLCh. 27 - Review the Survey the Landscape figure in the...Ch. 27 - How do the pulmonary and systemic circulatory...Ch. 27 - Prob. 3PITCh. 27 - Prob. 4PIT
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- Explain what a partial pressure gradient is and how such gradients figure in gas exchange.arrow_forwardexplain how basement membranes facillitate gas exchangearrow_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
- a)Draw a flow chart or diagram to illustrate how oxygen would move from the air into the body cells and how carbon dioxide would be removed. b)What is the end result of cellular respiration and why is this important in the body?arrow_forwardIn most tissues, if the temperature is increased by 10°C, how much is the rate of respiration increased?arrow_forwardThe 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.arrow_forward
- Describe three ways carbon dioxide can be transported from cellsto the lungs.arrow_forwardDescribe the four factors that affect the diffusion of gasesthrough the respiratory membrane. Give examples ofdiseases that decrease diffusion by altering these factors.arrow_forwardDescribe the partial pressure gradients for O2 and CO2.arrow_forward
- Describe the major transportation modes of O2 and CO2 in the blood.arrow_forwardYou have read about the Respiratory system in your Animal Physiology classes and are very excited to share the knowledge with one of your friend in the Chemistry Department. You explain to him the gas exchange between tissues and blood. However, your friend is very confused about the fact that how almost an equal amount of O2 & CO2 is exchanged in normal human (even during exercise) when the diffusion coefficient of CO2 is 20 times that of O2 (as CO2 is much more soluble in body tissues than O2). a) Explain the reason for the same to your friend. b) Why this equilibrium can’t be maintained in people who have a diseased lung with thickened walls?arrow_forwardWhat generates the diffusion gradients for oxygen and carbon dioxide in the tissues?arrow_forward
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