BIOS 240 Lecture 1: respiration video notes
Document Summary
Decrease in total air pressure from oxygen is what makes breathing hareder as air pressure drops as altitude increases. Henry s law= molar concentration of gas= k(partial pressure of gas) 7ml of o2= oxygen taken out from 1 liter would take up a volume of 7ml. Stpd= standard temp, pressure dry celsius, 1 atm, 0 celsius. Relative amounts of air and water:extraction of o2 from water requires moving a lot more weight. Mechanics of breathing and alveolar and capillary networking allowing gas exchange. Decrease pressure inside, allowing air to flow in. As temperature increases, amount of oxygen goes down. (gas solubility goes down) Diffusion constant(k) = rate of diffusion is less in water than air. Respiration: fick equation and structural features of respiratory systems. Amount of stuf= diffusion coef*total area * difference in concentration between sides. Very large surface area of lung to allow efficient gas exchange.
