You need to login first

Login information

Haven't yet registered?



Homework Help Boards (University / College Level)




Laboratory Help

Non-Homework Help Boards




* * * *
top posters

Support Us

If you found our community helpful, your small donation will continue to help us reach more students around the globe. You may also like us on Facebook or follow us on Twitter.
Pages: 1     Go Down
  New Topic  |  more  
Physioex 9.0 Exercise 4 pre and post quizzes Activity 1
Read 11019 times | Average Rating Not Rated Yet
Posts: 487
Credits: 3495
Rep:  +43  -0 

For a more comfortable homework help experience, try
Exercise 4: Endocrine System Physiology: Activity 1: Metabolism and Thyroid Hormone Lab Report
Pre-lab Quiz Results
You scored 100% by answering 6 out of 6 questions correctly.
1. Which of the following statements about metabolism is false?
You correctly answered: d. All of the energy from metabolism is ultimately stored in the chemical bonds of ATP.
2. Thyroxine is
You correctly answered: c. the most important hormone for maintaining the metabolic rate and body temperature.
3. Thyroid-stimulating hormone (TSH) is
You correctly answered: b. produced in the pituitary gland.
4. An injection of TSH to an otherwise normal animal will cause which of the following?
You correctly answered: d. goiter development
5. Thyrotropin-releasing hormone (TRH) is
You correctly answered: a. secreted by the hypothalamus.
6. Which of the following statements is true?
You correctly answered: b. The hypothalamus primarily secretes tropic hormones that stimulate the secretion of other

Post-lab Quiz Results
You scored 85% by answering 6 out of 7 questions correctly.
1. How would you treat a thyroidectomized animal so that it functions like a "normal" animal?
You correctly answered: c. Provide the animal T4 supplements.
2. As a result of the missing hormone(s) in the hypophysectimized rat, what would be some expected symptoms?
You correctly answered: d. decreased basal metabolic rate
3. An injection of thyroxine to an otherwise normal rat will cause which of the following?
You correctly answered: b. hyperthyroidism
4. Why didn't any of the rats develop a goiter after thyroxine injection?
You correctly answered: a. In all cases, TSH levels were not elevated by the thyroxine injection.
5. Why did the normal rat develop a palpable goiter with the TSH injection?
Your answer: a. The TSH receptors in the hypothalamus were overstimulated.
Correct answer: c. The TSH receptors on the thyroid gland were excessively stimulated.
6. An injection of propylthiouracil to an otherwise normal animal will cause which of the following?
You correctly answered: b. goiter development
7. Why did the normal rat develop a palpable goiter with the propylthiouracil injection?
You correctly answered: d. The injection decreased the negative feedback mechanism on TSH.

Report this PostReport Abuse

Volunteers are seldom paid; not because they are worthless, but because they are PRICELESS!
Pages: 1     Go Up New Topic more
Related Topics
Note: This topic is currently locked from adding new posts. Only administrators and moderators can reply. If you'd like to contribute to this topic, start a new thread and make reference to this one. Otherwise, contact a moderator for more options.

Ask a Question

Click to ask a question. 473 Students and 52 members are standing by to answer all your science and biology homework problems, free. So far today, 163 guests have joined.
Related Images