Purpose
The purpose of this experiment was to determine the effect of body mass and temperature on the rate of respiration in the mouse.
Hypothesis
When the temperature is reduced, cellular respiration will increase.
Measurement
Weight the mouse and use soda lime for mouse to perspire. Oxygen was inhaled and carbon dioxide was exhaled. Carbon dioxide was absorbed by soda lime. Rate of respiration was measured in terms of ml of oxygen per min over grams.
General Activity Level of Mouse
EXPERIMENT 1
EXPERIMENT 2
MASS
TEMP.
RATE OF RESP mlO2/min g MASS
TEMP.
RATE OF RESP mlO2/min g MASS
P/DP
HYPOTHESIS
A
25.1g
22C
2.55
0.102
15C
2.3
0.1
DISPROVE
B
27.3g
23.4C
2.83
0.104
15C
0.727
0.0266
DISPROVE
C
28.9g
26C
2.54
0.09
13C
0.94
0.03
DISPROVE
D
43.0g
25C
1.93
0.045
20C
2.5
0.1
DISPROVE
Conclusion
1. - C6H12O6 + 6O2 → 6CO2 + 6H2O Glucose and oxygen yields carbon dioxide and water
Mitochondria is involved with this equation in eukaryotic cells.
2. Homoeothermic – a living organism whose constant body temperature is independent of the temperature of its surrounding environment.
Endothermic – a living organism whose constant temperature is heated within itself.
3. The rate of respiration for the three mouses decreased, but the mouse that weighed the most the rate of respiration increased a lot. This is not what we expected, we expected that all the mouses’ respirations to increase.
4. Fall in temperature because the metabolism is slow.
5. The breathing would increase
6. I believe that there is a correlation between the weight of the mouse and the room temperature respiration rate because the respiration decreased as the weight increased. I would say look at the results but the temperature was not constant on all weights so the results aren’t reliable for weight vs. respiration experiment.
7. The second law of thermodynamics