EBK PRINCIPLES OF HUMAN PHYSIOLOGY
6th Edition
ISBN: 9780134399485
Author: STANFIELD
Publisher: PEARSON CO
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Chapter 2, Problem 22E
Summary Introduction
Introduction:
Microfilaments are filaments present in the cytoplasm of eukaryotic cells. They are also called actin filaments. They are a part of cytoskeleton and functions to provide support to the cell and helps in division and movement of cells.
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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 2 Solutions
EBK PRINCIPLES OF HUMAN PHYSIOLOGY
Ch. 2.1 - Prob. 2.1.1QCCh. 2.1 - Prob. 2.1.2QCCh. 2.1 - Prob. 2.1.3QCCh. 2.1 -
List the four types of chemical interactions...Ch. 2.2 - How does the impact Of Tay Sachs on the...Ch. 2.2 - In order to eradicate genetic diseases, such as...Ch. 2.2 - What would be the advantages and disadvantages of...Ch. 2.2 - Prob. 2.2.1QCCh. 2.2 - Prob. 2.2.2QCCh. 2.2 - Prob. 2.2.3QC
Ch. 2.2 - Prob. 2.2.4QCCh. 2.4 - Prob. 2.3.1QCCh. 2.4 - Describe the role of transmembrane proteins in the...Ch. 2.5 -
Why is only maternal mitochondrial DNA passed to...Ch. 2.5 -
How can mDNA. Be used to determine ancestry?
Ch. 2.5 - What are some diseases related to genetic...Ch. 2.5 -
Define transcription and translation. Where in...Ch. 2.5 -
Describe the functions of RNA polymerase in...Ch. 2.5 -
What is the name of the first of a polypeptide...Ch. 2.5 - Prob. 1aCTQCh. 2.5 - Why would preventing the larger ribosomal subunit...Ch. 2.5 - If ricin B induced exocytosis rather than...Ch. 2.6 -
Explain why and how a mutation in a...Ch. 2.6 -
Which characteristic(s) of cancer cells are...Ch. 2.6 - Prob. 3CTQCh. 2.6 - Prob. 2.5.1QCCh. 2.6 - Name the five stages of mitosis. During which...Ch. 2 - Prob. 1ECh. 2 - Prob. 2ECh. 2 -
Which of the following molecules is not a...Ch. 2 - Hydrogen bonding between the amino hydrogen of one...Ch. 2 -
Which of the following nucleic acids is not a...Ch. 2 - Prob. 6ECh. 2 - Prob. 7ECh. 2 - Prob. 8ECh. 2 - Prob. 9ECh. 2 - Prob. 10ECh. 2 - Prob. 11ECh. 2 - Prob. 12ECh. 2 - Prob. 13ECh. 2 -
During which phase of mitosis is the mitotic...Ch. 2 -
During which phase of mitosis do the chromosome...Ch. 2 -
Monosaccharides are (polar/nonpolar/amphipathic)...Ch. 2 - Triglycerides are (polar/nonpolar/amphipathic)...Ch. 2 - Prob. 18ECh. 2 - Prob. 19ECh. 2 - Prob. 20ECh. 2 - Prob. 21ECh. 2 - Prob. 22ECh. 2 - Prob. 23ECh. 2 - Prob. 24ECh. 2 - Prob. 25ECh. 2 - Prob. 26ECh. 2 -
The first section of a polypeptide to be...Ch. 2 -
Replication of DNA occurs during...Ch. 2 -
Division of the cytoplasm into two daughter...Ch. 2 - Prob. 30ECh. 2 - Prob. 31ECh. 2 - Prob. 32ECh. 2 -
Describe the structure of the plasma membrane....Ch. 2 - Prob. 34ECh. 2 - Prob. 35ECh. 2 - Prob. 36ECh. 2 - Prob. 37ECh. 2 - Prob. 38ECh. 2 -
Draw a flowchart showing the synthesis of...Ch. 2 -
Plasma, which is the fluid portion of blood, is...Ch. 2 -
Name some factors that cause cancer and potential...Ch. 2 - Prob. 42ECh. 2 - Prob. 43ECh. 2 - Prob. 44E
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