BIOLOGY
12th Edition
ISBN: 9781264839698
Author: Raven
Publisher: MCG CUSTOM
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Chapter 47, Problem 3DA
Summary Introduction
To determine: The benefit of taking 100% oxygen following bout of intense exercise.
Introduction: The partial pressure of carbon dioxide determines the pH of the body tissues as it is circulated through the blood to all the body tissues and is exchanged with oxygen. The body tissues have high partial pressure of carbon dioxide due to anaerobic respiration and low partial pressure of oxygen which helps to exchange carbon dioxide and oxygen.
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Background information: A static respirometer can be used to measure metabolic rates of small aquatic organisms such as fish and crayfish. The animal is weighed and placed in the chamber. The chamber is then filled completely with water and sealed, and the dissolved oxygen level in the water is measured for 30 – 60 minutes. The animal is then removed and the respirometer is rinsed before being filled with clean water for the next trial. Metabolic rates can be calculated knowing the oxygen consumption rate, the volume of the chamber, and the weight of the animal. The picture shows a typical static respirometer. The probes on the lid measure dissolved oxygen and temperature and are linked to a computer for data collection.Question -It is common to stop feeding animals for 12 – 24 hours before they are used in metabolic rate trials. Why is this done?
The below graph shows both ventilation and blood lactate concentration as a function of total oxygen consumption during a bout of exercise. Explain the relationship between these two variables and why these two measures (ventilatory threshold and lactate threshold) tend to occur around the same level of exercise intensity.
Chapter 47 Solutions
BIOLOGY
Ch. 47.1 - Prob. 1LOCh. 47.1 - Prob. 2LOCh. 47.1 - Compare evolutionary strategies for maximizing gas...Ch. 47.2 - Prob. 1LOCh. 47.2 - Prob. 2LOCh. 47.3 - Prob. 1LOCh. 47.3 - Prob. 2LOCh. 47.3 - Describe the breathing cycle of birds.Ch. 47.4 - Prob. 1LOCh. 47.4 - Prob. 2LO
Ch. 47.4 - Prob. 3LOCh. 47.5 - Describe the structure of hemoglobin.Ch. 47.5 - Predict hemoglobins oxygen affinity in various...Ch. 47.5 - Prob. 3LOCh. 47 - Prob. 1DACh. 47 - Prob. 2DACh. 47 - Prob. 3DACh. 47 - Prob. 4DACh. 47 - For a given PO2, how does oxyhemoglobin saturation...Ch. 47 - Prob. 1IQCh. 47 - Prob. 2IQCh. 47 - Prob. 1UCh. 47 - Increased efficiency of gas exchange in...Ch. 47 - Prob. 3UCh. 47 - Prob. 4UCh. 47 - Ficks Law of Diffusion states the rate of...Ch. 47 - Prob. 6UCh. 47 - Prob. 7UCh. 47 - Prob. 8UCh. 47 - When you take a deep breath, your stomach moves...Ch. 47 - Marine mammals are able to hold their breath for...Ch. 47 - Countercurrent flow systems do not occur in lungs...Ch. 47 - Respiratory organs of invertebrates and...Ch. 47 - Prob. 5ACh. 47 - During exercise more oxygen is delivered to the...Ch. 47 - Compare the operation and efficiency of fish gills...Ch. 47 - What happens when, during exercise, the oxygen...Ch. 47 - Explain how bacteria, archaea, protists, and many...
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