Lab 4 : Mouse Respiration

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Lab 4 Mouse Respiration
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Cellular RespirationC6H12O6 O2 ? CO2 H2O
ATP

• Glucose Oxygen

Carbon Dioxide Water 36 - 38 ATPs
ENERGY
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Oxygen, which is required for cellular
respiration, enters the lungs while CO2, a
product of cellular respiration, is expelled from
the lungs
You will be measuring the O2 consumption of the
mouse
C6H12O6 O2 ? CO2 H2O ATP
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Homeostasis Responses to Temperature Change

• Homeothermic animals
• Endothermic
• Mammals and birds
• In mammals, the hypothalmus regulates body
  temperature by balancing heat production and loss

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• Poikilothermic animals
• Creatures whose internal temperatures vary, often
  matching the ambient temperature of the immediate
  environment
• Reptiles and Amphibians

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Cellular respiration and heat production
Where does heat come from during cellular
respiration?
C6H12O6 O2 ? CO2 H2O ATP
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Cellular respiration and heat production
The Second Law of Thermodynamics Cellular
respiration is only 40 efficient
C6H12O6 O2 ? CO2 H2O ATP
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You will be testing two hypotheses

• What is the effect of lowering the environmental
  temperature on the rate of cellular respiration?
• What is the effect of body mass on the rate of
  cellular respiration?
• State your hypotheses in your lab manual
• You will address these thoroughly when you write
  your formal lab report