JavaScript is disabled in your browser.
Clicking the Submit Answers for Grading button below will result in an error and your answers will be cleared. Please enable JavaScript before submitting your quiz for grading. Consult your browser's Help feature for information on enabling JavaScript.
Lab Quiz
Endocrine System Physiology
Lab Quiz
This activity contains 20 questions.
Refer to Activity 1: Determining Baseline Metabolic Rates. How did the baseline metabolic rates of the three rats differ?
The normal rat's metabolic rate was the lowest.
The thyroidectomized rat's metabolic rate was the highest.
The hypophysectomized rat's metabolic rate was the highest.
The metabolic rates for the thyroidectomized and hypophysectomized rats were lower than that of the normal rat.
Why did the metabolic rates differ?
The hypophysectomized rat lacked thyroid-stimulating hormone.
The normal rat lacked propylthiouracil.
The thyroidectomized rat lacked TSH.
The hypophysectomized rat lacked thyroxine.
Refer to Activity 2: Determining the Effect of Thyroxine on Metabolic Rate. How did the thyroxine affect the normal rat's metabolic rate?
It caused the rate to increase.
It caused the rate the decrease.
It had no effect on the metabolic rate.
What was the effect of thyroxine on the thyroidectomized rat's metabolic rate?
Thyroxine had no effect on the metabolic rate.
Thyroxine decreased the metabolic rate.
Thyroxine caused the rat to gain weight.
Thyroxine increased the metabolic rate.
What was the effect of thyroxine on the hypophysectomized rat?
Thyroxine increased the metabolic rate.
Thyroxine decreased the metabolic rate.
Thyroxine had no effect on the metabolic rate.
Thyroxine caused the rat to gain weight.
Refer to Activity 3: Determining the Effect of TSH on Metabolic Rate. What is the effect of TSH on the normal rat's metabolic rate?
TSH increased the metabolic rate.
TSH had no effect on the metabolic rate.
TSH had the opposite effect of thyroxine.
TSH decreased the metabolic rate.
How did the metabolic rate of the thyroidectomized rat injected with TSH compare to its baseline metabolic rate?
It was dramatically different from the baseline rate.
It was the same as the baseline rate.
It was faster than the baseline rate.
It was slower than the baseline rate.
Which organ has been removed in the rat that has been hypophysectomized?
Pituitary gland
Thyroid gland
Parathyroid glands
Pancreas
Refer to Activity 4: Determining the Effect of Propylthiouracil on Metabolic Rate. What effect did an injection of propylthiouracil have on the metabolic rate of the normal rat?
The metabolic rate increased.
The metabolic rate decreased.
The metabolic rate remained the same.
What was the effect of the propylthiouracil on the thyroidectomized rat?
The propylthiouracil increased the metabolic rate.
The propylthiouracil caused the rat to breathe faster.
The propylthiouracil decreased the metabolic rate.
There was no effect.
Refer to Activity 5: Hormone Replacement Therapy. Which of the following had the greatest effect on bone density?
Estrogen
Saline
Estrogen and calcitonin both had equal effects.
Calcitonin
Which of the following best describes the effect of estrogen injections into the rat?
The estrogen decreased the vertebral bone density of the rat.
The estrogen inhibited osteoblast activity.
The estrogen increased the vertebral bone density of the rat.
The estrogen injections resulted in osteoporosis in the rat.
Which of the following best describes the effect of the calcitonin injections into the rat?
The calcitonin inhibited osteoblast activity.
The calcitonin increased vertebral bone density in the rat.
The calcitonin injections resulted in osteoporosis in the rat.
The calcitonin had little or no effect on vertebral bone density in the rat.
Refer to Activity 6: Obtaining a Glucose Standard Curve. What is the reason for generating a glucose standard curve?
So that you have a method for converting optical density measurements into glucose concentration values.
The curve glucose concentrations represent patient samples.
So that the spectrophotometer is calibrated to measure glucose concentrations.
To determine the amount of glucose in each of the standard tubes.
Refer to Activity 7. Which patient(s) had a fasting plasma glucose level that was borderline?
Patients 3 and 5
Patient 1
Patients 2 and 4
Patient 3
How would you describe the diagnosis for Patient 3?
Type 1 diabetes mellitus
Gestational diabetes
Steroid diabetes
Impaired fasting glucose
What additional test would you recommend for Patients 2 and 4?
Oral glucose tolerance test
TSH blood test
Pregnancy test
Which hormone is NOT correctly matched with its secreting organ.
Cortisol; adrenal cortex
ACTH; posterior lobe of the adrenal gland
CRH; hypothalamus
Insulin; beta cells of the pancreas
Which patient would be diagnosed with secondary adrenal insufficiency (hypopituitarism)?
Patient 3
Patient 1
Patient 5
Patient 2
Patient 4
Which patient would be diagnosed with Cushing's disease (secondary hypercortisolism)?
Patient 2
Patient 3
Patient 1
Patient 4
Patient 5
The Clear Answers feature requires scripting to function. Your browser either does not support scripting or you have turned scripting off. So, the Clear Answers feature will not work. Note that you do not need to use the Clear Answers feature in order to use this site. You can change your answers for each question individually.
Your browser either does not support scripting or you have turned scripting off. Because of this, the answer choices will NOT appear in a different order each time the page is loaded, though that is mentioned below. Note that you do not need this feature to use this site.
Answer choices in this exercise appear in a different order each time the page
is loaded.
Copyright © 1995-2008, Pearson Education, Inc., publishing as Pearson Benjamin Cummings
Legal and Privacy Terms
