Applying Ideas

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Applying Ideas

This is an on-line version of the same Applying Ideas questions included at the end of the chapter in your textbook. Use this version to quickly and easily submit your work to your instructor or teaching assistant.

1. Suppose that during a detailed anatomical study of a marine invertebrate, you found a small, previously undescribed structure. How would you test the hypothesis that the structure is a gland that releases one or more hormones?
To create paragraphs in your essay response, type at the beginning of the paragraph, and at the end.

2. Cortisone is a glucocorticoid that suppresses inflammation and other aspects of wound healing. Cortisone was once widely used to treat athletes with joint injuries and people who suffered from arthritis. Short-term, it is extremely effective in reducing swelling and pain. Over time, however, physicians found that repeated large doses of cortisone had damaging side effects. Predict what these side effects are. Explain your logic.
To create paragraphs in your essay response, type at the beginning of the paragraph, and at the end.

3. You are a physician supervising a patient's recovery from surgical removal of the posterior pituitary. Name a hormone that you will have to administer to this patient artificially. Which symptom(s) will you monitor to assess whether the dosage and timing of your injections is having the desired effect?
To create paragraphs in your essay response, type at the beginning of the paragraph, and at the end.

4. Suppose that a researcher announces the discovery of a hormone that affects the metabolism of fats in lab rats. Preliminary data indicate that the hormone is a polypeptide, about 50 amino acids long. How would you go about isolating the receptor for this hormone? Using fat cells growing in vitro, how could you test the hypothesis that hormone binding causes a change in a second messenger?
To create paragraphs in your essay response, type at the beginning of the paragraph, and at the end.

5. Discuss the trade-offs involved in the short-term response to stress in humans. What are the advantages and disadvantages of activating certain systems in the body while shutting others down?
To create paragraphs in your essay response, type at the beginning of the paragraph, and at the end.

6. Study Figure 44.4 (page 855 in your textbook) and note that the components of the endocrine system are all located along the midline of the body. Suggest a hypothesis for why this pattern exists.
To create paragraphs in your essay response, type at the beginning of the paragraph, and at the end.

7. Turn back to Chapter 14 and briefly review the role of cAMP in the regulation of the lac operon in Escherichia coli. How does cAMP's role in glucose utilization by bacteria compare to the role of cAMP in the production of glucose by human cells in response to epinephrine?
To create paragraphs in your essay response, type at the beginning of the paragraph, and at the end.




1.	Suppose that during a detailed anatomical study of a marine invertebrate, you found a small, previously undescribed structure. How would you test the hypothesis that the structure is a gland that releases one or more hormones? To create paragraphs in your essay response, type <p> at the beginning of the paragraph, and </p> at the end.



2.	Cortisone is a glucocorticoid that suppresses inflammation and other aspects of wound healing. Cortisone was once widely used to treat athletes with joint injuries and people who suffered from arthritis. Short-term, it is extremely effective in reducing swelling and pain. Over time, however, physicians found that repeated large doses of cortisone had damaging side effects. Predict what these side effects are. Explain your logic. To create paragraphs in your essay response, type <p> at the beginning of the paragraph, and </p> at the end.



3.	You are a physician supervising a patient's recovery from surgical removal of the posterior pituitary. Name a hormone that you will have to administer to this patient artificially. Which symptom(s) will you monitor to assess whether the dosage and timing of your injections is having the desired effect? To create paragraphs in your essay response, type <p> at the beginning of the paragraph, and </p> at the end.



4.	Suppose that a researcher announces the discovery of a hormone that affects the metabolism of fats in lab rats. Preliminary data indicate that the hormone is a polypeptide, about 50 amino acids long. How would you go about isolating the receptor for this hormone? Using fat cells growing in vitro, how could you test the hypothesis that hormone binding causes a change in a second messenger? To create paragraphs in your essay response, type <p> at the beginning of the paragraph, and </p> at the end.



5.	Discuss the trade-offs involved in the short-term response to stress in humans. What are the advantages and disadvantages of activating certain systems in the body while shutting others down? To create paragraphs in your essay response, type <p> at the beginning of the paragraph, and </p> at the end.



6.	Study Figure 44.4 (page 855 in your textbook) and note that the components of the endocrine system are all located along the midline of the body. Suggest a hypothesis for why this pattern exists. To create paragraphs in your essay response, type <p> at the beginning of the paragraph, and </p> at the end.



7.	Turn back to Chapter 14 and briefly review the role of cAMP in the regulation of the lac operon in Escherichia coli. How does cAMP's role in glucose utilization by bacteria compare to the role of cAMP in the production of glucose by human cells in response to epinephrine? To create paragraphs in your essay response, type <p> at the beginning of the paragraph, and </p> at the end.

Chapter 44: Chemical Signals in Animals

Applying Ideas