February 14 - February 14 UCP uncoupling protein Look up...

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February 14 UCP- uncoupling protein Look up and find information of UCP 2 to 5 Bumblebees shiver to warm up on a cold morning o Shiver to generate heat Endothermy : have different physiologies to adapt to extreme environments Ectothermy Water animals: Arteries and veins are very close together so they can transfer heat Gas Exchange Need system to obtain oxygen and eliminate CO2 then transport oxygen around Our atmosphere is 21% = oxygen and 78% = nitrogen Gases diffuse: rate of diffusion is dependent on the amount of gas compared to other gases Partial Pressure: percentage of the gas in the air, pO2= .21 The partial pressure of oxygen falls with increasing elevation (sea level 760 mm Hg pressure, pressure at sea level for oxygen is 760 * .21 = 160 mm Hg) Respiratory service must be thin, moist and close to surface (O2 supply) o Ventilation: airways into lungs o Circulation: veins ect. o Respiration : cell-oxidizing glucose to make ATP, byproduct CO2 and water
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