Campbell Biology (11th Edition)
11th Edition
ISBN: 9780134093413
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 6.5, Problem 1CC
Describe two characteristics shared by chloroplasts and mitochondria. Consider both function and membrane structure.
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Discussion Questions
Answer these discussion questions and submit them as part of your lab report.
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 6 Solutions
Campbell Biology (11th Edition)
Ch. 6.1 - Prob. 1CCCh. 6.1 - Prob. 2CCCh. 6.2 - Briefly describe the structure and function of the...Ch. 6.2 - DRAW IT Draw a simplified elongated cell that...Ch. 6.3 - What role do ribosomes play in carrying out...Ch. 6.3 - Describe the molecular composition of nucleoli and...Ch. 6.3 - Prob. 3CCCh. 6.4 - Describe the structural and functional...Ch. 6.4 - Describe how transport vesicles integrate the...Ch. 6.4 - WHAT IF? Imagine a protein that functions in the...
Ch. 6.5 - Describe two characteristics shared by...Ch. 6.5 - Prob. 2CCCh. 6.5 - Prob. 3CCCh. 6.6 - Prob. 1CCCh. 6.6 - WHAT IF? Males afflicted with Kartagener's...Ch. 6.7 - In what way are the cells of plants and animals...Ch. 6.7 - Prob. 2CCCh. 6.7 - MAKE CONNECTIONS The polypeptide chain that makes...Ch. 6.8 - Prob. 1CCCh. 6 - Prob. 6.1CRCh. 6 - Explain how the compartmental organization of a...Ch. 6 - Describe the relationship between the nucleus and...Ch. 6 - Describe the key role played by transport vesicles...Ch. 6 - What does the endosymbiont theory propose us the...Ch. 6 - Describe the role of motor proteins inside the...Ch. 6 - Prob. 6.7CRCh. 6 - When a cell ingests a bacterium, what role does...Ch. 6 - Which structure is not part of the endomembrane...Ch. 6 - Prob. 2TYUCh. 6 - Which of the following is present in a prokaryotic...Ch. 6 - Prob. 4TYUCh. 6 - Which cell would be best for studying lysosomes?...Ch. 6 - Prob. 6TYUCh. 6 - EVOLUTION CONNECTION (a) What cell structures best...Ch. 6 - SCIENTIFIC INQUIRY Imagine protein X, destined to...Ch. 6 - WRITE ABOUT A THEME: ORGANIZATION Considering some...Ch. 6 - SYNTHESIZE YOUR KNOWLEDGE The cells in this SEM...
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