Essay physioex 9.0 exercise 4 activity 1

2066 Words Sep 15th, 2013 9 Pages
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
…show more content…
The normal rat is
You correctly answered: c. hyperthyroid
Judging from their basal metabolic rates (an indicator of thyroid function), categorize the rats as hypothyroid (low thyroid levels; BMR below 1600), euthyroid ("good," or normal, thyroid levels; BMR = 1650-1750), or hyperthryoid (high thyroid levels; BMR above 1800) after the thyroxine injection.

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The thyroidectomized (Tx) rat is
You correctly answered: c. hyperthyroid
Judging from their basal metabolic rates (an indicator of thyroid function), categorize the rats as hypothyroid (low thyroid levels; BMR below 1600), euthyroid ("good," or normal, thyroid levels; BMR = 1650-1750), or hyperthryoid (high thyroid levels; BMR above 1800) after the thyroxine injection.
The hypophysectomized (Hypox) rat is
You correctly answered: c. hyperthyroid
Which of the rats developed a goiter after injection with thyroxine (select all that apply)?
You correctly answered: d. None of the rats developed a goiter with this injection.
Judging from their basal metabolic rates (an indicator of thyroid function), categorize the rats as hypothyroid (low thyroid levels; BMR below 1600), euthyroid ("good," or normal, thyroid levels; BMR = 1650-1750), or hyperthryoid (high thyroid levels; BMR above 1800) after the TSH injection.
The normal rat is
You correctly answered: c. hyperthyroid
Judging from their basal metabolic rates (an indicator of thyroid

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