Principles of Anatomy and Physiology
14th Edition
ISBN: 9781118345009
Author: Gerard J. Tortora
Publisher: WILEY
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Textbook Question
Chapter 23, Problem 18CP
How is minute ventilation calculated?
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Part A: The Effect of Temperature on Enzyme Activity
Graph the volume of oxygen produced against the temperature of the solution.
How is the oxygen production in 30 seconds related to the rate of the reaction?
At what temperature is the rate of reaction the highest? Lowest? Explain.
Why might the enzyme activity decrease at very high temperatures?
Why might a high fever be dangerous to humans?
What is the optimal temperature for enzymes in the human body?
Part B: The Effect of pH on Enzyme Activity
Graph the volume of oxygen produced against the pH of the solution.
At what pH is the rate of reaction the highest? Lowest? Explain.
Why does changing the pH affect the enzyme activity?
Research the enzyme catalase. What is its function in the human body?
What is the optimal pH for the following enzymes found in the human body? Explain. (catalase, lipase (in your stomach),…
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Discussion Questions:
Part One
Why were the plants kept in the dark prior to the experiment? Why is this important?
Why is it important to boil the leaf?
Explain why it was necessary to use boiling alcohol?
What is the purpose of the iodine?
Part Two
What was the purpose of keeping the leaf in the dark and then covering it with a cardboard cut-out?
What conclusions can you draw from this part of the lab?
Part Three
7. In this experiment what was the purpose of adding the soda lime?
8. Why was a sealed bag placed around each plant?
9. What happened in the control plants?
10. What was the result on photosynthesis?
Part Four
11. Why was a variegated leaf used in this experiment?
!2. What conclusions can you draw about starch production in a variegated leaf?
How did the color differences between the two bacterial species you used in this experiment help you determine if the streak plate method you performed was successful?
Chapter 23 Solutions
Principles of Anatomy and Physiology
Ch. 23 - Prob. 1CPCh. 23 - Prob. 2CPCh. 23 - 4. Compare the structure and functions of the...Ch. 23 - Prob. 4CPCh. 23 - Prob. 5CPCh. 23 - Prob. 6CPCh. 23 - 8. Describe the structure of the bronchial tree.
Ch. 23 - Prob. 8CPCh. 23 - Prob. 9CPCh. 23 - Prob. 10CP
Ch. 23 - Prob. 11CPCh. 23 - Prob. 12CPCh. 23 - Prob. 13CPCh. 23 - Describe how alveolar surface tension, compliance,...Ch. 23 - Demonstrate the various types of modified...Ch. 23 - Prob. 16CPCh. 23 - What is the difference between a lung volume and a...Ch. 23 - How is minute ventilation calculated?Ch. 23 - Prob. 19CPCh. 23 - Prob. 20CPCh. 23 - How does the partial pressure of oxygen change as...Ch. 23 - What are the diffusion paths of oxygen and carbon...Ch. 23 - 24. What factors affect the rate of diffusion of...Ch. 23 - Prob. 24CPCh. 23 - What is the relationship between hemoglobin and P...Ch. 23 - Prob. 26CPCh. 23 - Prob. 27CPCh. 23 - How is the pontine respiratory group related to...Ch. 23 - Prob. 29CPCh. 23 - How does exercise affect the DRG?Ch. 23 - What structures develop from the laryngotracheal...Ch. 23 - What accounts for the decrease in lung capacity...
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