Biology 2601A/B Lecture Notes - Lecture 13: Spectrophotometry, Cell Membrane, Inositol
Document Summary
In order to diffuse, gases must be dissolved in solution (i. e. not bound: has to be dissolved in the extracellular fluid, can not be bound to diffuse, has to be in solution. If you add more co2 it gets pushed to the right and makes more bicarbonate and protons. Figure: hemoglobin (example: hemoglobin is the most common oxygen binding pigment. Chlorocruorins: kind of like heme groups because they have a modified porphyrin ring with iron, turns green when o2 bound. Iron-containing proteins (they do the binding and the releasing of oxygen) Found in very ancient organisms: sipunculid worm, brachiopods. Found in the muscle and blood cells of these organisms. Hemocyanins: copper containing (not iron, no porphyrin ring, the copper is associated with proteins that have up to 160 o2 binding sites, turns blue when o2 bound. Found in vertebrates: marine arthropods, crustaceans, lobster, molluscs, squids.