Physiology Lab 2
Experiment Results
Predict Question:
Predict Question 1: Make a prediction about the basal metabolic rate (BMR) of the remaining rats compared with the BMR of the normal rat you just measured.
Your answer : c. The BMR of both remaining rats will be lower than the normal rat's BMR.
Predict Question 2: What do you think will happen after you inject thyroxine into the three rats? Your answer : a. The normal rat will become hyperthyroidic and develop a goiter.
Predict Question 3: What do you think will happen after you inject TSH into the three rats? Your answer : a. The normal rat will become hyperthyroidic and develop a goiter.
Predict Question 4: Propylthiouracil (PTU) is a drug that inhibits the production of thyroxine by blocking the attachment of iodine to tyrosine residues in the follicle cells of the thyroid gland (iodinated tyrosines are linked together to form thyroxine). What do you think will happen after you inject PTU into the three rats?
Your answer : d. The normal rat will become hypothyroidic and develop a goiter.
Stop & Think Questions:
1h. Calculate the oxygen consumption per hour for this rat using the following equation. ml O2 consumed/1 minute x 60 minutes/hour = ml O2/hour
Enter the oxygen consumption per hour in the field below and then click Submit Data to display your results in the Lab Report.
You answered: 426 ml O2/hr
1i. Now that you have calculated the oxygen consumption per hour for this rat, you can calculate the metabolic rate per kilogram of body weight with the following equation (note that you need to convert the weight data from grams to kilograms to use this equation).
Metabolic rate = (ml O2/hr)/(weight in kg) = ml O2/kg/hr
Enter the metabolic rate in the field below and then click Submit Data to display your results in the Lab Report. You answered: 1704 ml O2/kg/hr
2h. Calculate the oxygen consumption per hour for this rat using the following equation. ml O2 consumed/1 minute x 60 minutes/hour = ml
Predict Question:
Predict Question 1: Make a prediction about the basal metabolic rate (BMR) of the remaining rats compared with the BMR of the normal rat you just measured.
Your answer : c. The BMR of both remaining rats will be lower than the normal rat's BMR.
Predict Question 2: What do you think will happen after you inject thyroxine into the three rats? Your answer : a. The normal rat will become hyperthyroidic and develop a goiter.
Predict Question 3: What do you think will happen after you inject TSH into the three rats? Your answer : a. The normal rat will become hyperthyroidic and develop a goiter.
Predict Question 4: Propylthiouracil (PTU) is a drug that inhibits the production of thyroxine by blocking the attachment of iodine to tyrosine residues in the follicle cells of the thyroid gland (iodinated tyrosines are linked together to form thyroxine). What do you think will happen after you inject PTU into the three rats?
Your answer : d. The normal rat will become hypothyroidic and develop a goiter.
Stop & Think Questions:
1h. Calculate the oxygen consumption per hour for this rat using the following equation. ml O2 consumed/1 minute x 60 minutes/hour = ml O2/hour
Enter the oxygen consumption per hour in the field below and then click Submit Data to display your results in the Lab Report.
You answered: 426 ml O2/hr
1i. Now that you have calculated the oxygen consumption per hour for this rat, you can calculate the metabolic rate per kilogram of body weight with the following equation (note that you need to convert the weight data from grams to kilograms to use this equation).
Metabolic rate = (ml O2/hr)/(weight in kg) = ml O2/kg/hr
Enter the metabolic rate in the field below and then click Submit Data to display your results in the Lab Report. You answered: 1704 ml O2/kg/hr
2h. Calculate the oxygen consumption per hour for this rat using the following equation. ml O2 consumed/1 minute x 60 minutes/hour = ml