Optimizing gas exchange
{"Image DocumentName": "Optimizing gas exchange", "Image ImageDescription": "Why high surface area? maximizing rate of gas exchange. CO2 & O2 move across cell membrane by diffusion. rate of diffusion proportional to surface area. Why moist membranes? moisture maintains cell membrane structure. gases diffuse only dissolved in water. small intestines. large intestines. capillaries. mitochondria. High surface area? High surface area! Where have we heard that before?", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}