Lab 4: Endocrine System Physiology
 
Quizzes
 

1 .       Refer to Activity 1: Determining Baseline Metabolic Rates. How did the baseline metabolic rates of the three rats differ? 



2 .       Why did the metabolic rates differ? Check all that apply: 



3 .       Refer to Activity 2: Determining the Effect of Thyroxine on Metabolic Rate. How did the thyroxine affect the normal rat's metabolic rate? 



4 .       What was the effect of thyroxine on the thyroidectomized rat's metabolic rate? 



5 .       What was the effect of thyroxine on the hypophysectomized rat? 



6 .       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? 



7 .       How did the metabolic rate of the thyroidectomized rat injected with TSH compare to its baseline metabolic rate?  



8 .       What was the oxygen consumption per hour for the hypophysectomized rat injected with TSH? 



9 .       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? 



10 .       What was the effect of the propylthiouracil on the thyroidectomized rat? 



11 .       Refer to Activity 5: Hormone Replacement Therapy. How does the uterus weight of the rat that received estrogen differ from the uterus weight of the rat that received saline?  



12 .       Which of the following best describes the effects of estrogen injections into the rat? 



13 .       If testosterone had been administered instead, how would the uteruses have been affected? 



14 .       Refer to Activity 6: Obtaining a Glucose Standard Curve. What is the glucose reading for the control rat? 



15 .       What is the glucose level for the experimental rat prior to receiving insulin?  



16 .       What is the glucose level of the experimental rat after it has been injected with insulin? 



17 .       What is the condition that the injection of alloxan caused in the experimental rat? 



18 .       What is the effect of administering insulin to the control animal? Check all that apply. 



19 .       What was the effect of administering insulin to the experimental animal? 



20 .       Insulin is secreted from which cells in the pancreas? 



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