Assignment Goals
Source Material
Student Instructions
Guiding Questions
Writing Prompt
Please
COMMENT
This activity has the following
goals:
- Explain the similarities and differences between protein-like hormones and
steroid hormones, and relate their effects on cells to psychosocial
challenges.
- Promote effective reading for understanding and answering the Guiding
Questions.
- Analyze a primary research article to arrive at valid conclusions about
content in the text, and apply these conclusions in the real world.
- Learn how to organize an essay with an instructional model provided by the
Guiding Questions and Writing Prompt.
- Learn how to think more clearly and creatively from evaluating the writing
examples of peers.
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Study the
following source material:
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| Source Material
Resources: |
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There are several tasks to
complete.
- Study the Source Materials carefully.
- Answer all Guiding Questions and write your essay from the Writing Prompt.
- Submit your essay to CPR. You will not be able to enter it after that time. Any student
entering an essay and failing to complete the steps below will earn zero
credit and lose 5 points for disrupting the CPR for the remaining students.
- Perform the calibration of the sample essays. Follow this with review of
your peers’ essays and then your self-assessment.
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- How do protein-like and steroid hormones differ in location of their
receptors in the cell. What principle for cell membranes and solubility of
molecules explains this difference for both types of hormones?
- How do protein-like and steroid hormones differ in mechanism for their
effects on cells?
- The binding of testosterone to its receptor inside muscle cells does not
directly increase synthesis of proteins for contraction. How can
administration of testosterone cause increased synthesis of contractile
proteins inside muscle cells and, therefore, increase in muscle strength?
[Hint: Insulin-like growth factor-1 or IGF-1 is a water-soluble hormone; the
research article by Urban
et al. (1995) details the process for you, together with its
Glossary.]
- A knowledge claim is a conclusion supported by valid data. What is the
main knowledge claim from the testosterone research study, stated as a
conclusion by Urban
et al. (1995)?
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Write a paragraph of 150-250
words on all aspects of testosterone function covered in the Guiding Questions,
and apply this explanation to psychosocial challenges. Any quoted material in
this essay earns zero credit; it must be entirely in your own words.
- Begin with the main knowledge claim from the testosterone research
article, and acknowledge this article as the source of this knowledge.
- Explain the role of cell membranes in determining the difference in
location of receptors for testosterone compared to IGF-1.
- Then, discuss the differences between testosterone and IGF-1 in their
basic mechanisms for affecting a cell. Include in this discussion a summary
for how testosterone ultimately promotes increase in muscle strength.
- Conclude the paragraph with three value claims based on the instructions
below. Do not mention the "IGF-1 binding protein" studied in the research
article. Acknowledge this article for any material you take from it to support
your value claims.
A value claim is a judgment for how beneficial something may be.
For example, confirming that IGF-1 increases strength could give researchers
a mechanism for improving strength in the elderly. Give a value claim (1)
for testosterone administration in the elderly, and support it from the
research article; (2) for the potential social value of giving testosterone
to the elderly; and (3) for effectiveness and safety of testosterone versus
old-fashioned exercise.
Please be as creative as you desire for making these claims; the only
"wrong" response here would be something totally unrealistic.
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Bob
Hyde
San Jose State
University
and
Nancy
Pelaez
MaSTERS, College of Natural Sciences and Mathematics
California State University, Fullerton
Copyright © 2000. All rights reserved.
Revised: July 09, 2000.