BSCI 207 Lecture Notes - Lecture 22: Carbonic Anhydrase, Hemocyanin, Partial Pressure
22 Oct 2018
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Bsci 207, dr. bretton kent - monday, october 22, 2018. Must take in oxygen and take out carbon dioxide. Use water and air (both are fluids) to move. Carries little oxygen with high variability and carbon dioxide. Highly viscosity (liquid clinging to surface) and density. High concentration of oxygen, low of carbon dioxide. Allows large amounts of carbon dioxide to be dissolved. How much of gases are in atmosphere. Concentration of gas in mixture expressed as mm hg. Elevation decreases pressure of gases, same percentages. Flux maximized by increasing area of diffusion, increasing concentration. Movement of water or air due to a pressure gradient to place of diffusion gradient, or decreasing distance. Axes of diversity (why something can appear) Oxygen more present (21%) as opposed to carbon dioxide (. 03 %) Diffusion adequate only in aerial & subterranean components. Use stomata and cuticle to avoid desiccation. Oxygen competes for carbon dioxide binding site on rubisco.
