Question

on Pee heve high respiration product/cown high Foto 60 2. Record chamber temperature for iced mouse: Temperature: 14 °C 21°C room temp. 3. Data Table: Perform similar calculations as in Part A. 3600 300 28.2.) 10.6 Trial Time AT Volume 02 AVIAT ml O2 ming' ml O, hr'g' number consumed AV 1.00 10.6 0.55 15 9.09 11.6 1:23 4.07 1:26 5 4.00 01.11 4.50 4. Calculate the weight-specific respiration rate of your mouse as mi o consumed per hour per gram of body weight: Weight-specific respiratory rate of cold mouse: 4.26 ml O, hr.g' 5. What effect did a decrease in temperature have on the weight-specific respiratory rate of your mouse? Compare the rate determined in Part A with the rate obtained here. Was this response expected? Does the data support your hypothesis? Explain these results (give a detailed explanation with reference to the maintenance of homeostasis and energy expenditure). 6. Is your result an anomaly or is there a similar trend in replicates? Answer this question by entering class data in the table below. Place an asterisk (*) next to your group's entry 10--6
answer question number 5 or 6

Answer 1

There is one single data missing that is necesary to give a discussion of results, but we'll discuss here the different comparisons.

The missing data is the respiration rate in part A which, I assume, is the rate in normal temperature conditions. Let's assume part A respiratory rates were higher than 9.26 ml O2/hr*g

5.- What effect did a decrease in temperature have on the weight specific respiratory rate of your mouse?

Well, if part A values are higher... The effect of low temperatures decreased the respiratory rate

Was this response expected? No, we expected respiratory rates to go up at low temperatures.

Does the data support you hypothesis? No, they showed the opposite result

Explain these results.

When temperature decreases, respiration rate decreases too, as the body enters in a energy-conservation state. Energy is not spent at the same rates as at normal temperatures, thus oxygen is not required at the same rates so they lower too.

6.- It is actually a trend in all replicates, as you can see in you data, they all tend to such values.