BIOB34H3 Lecture Notes - Lecture 17: Hemolymph, Partial Pressure, Ectotherm
4 Dec 2018
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We"ve started talking about circ delivery of ox to the tissue through how we bring circ fluid to the resp surface (3 different types) ^very broad discussion but only one aspect discussed: how much oxygen delivers to the tissues? (greater the dissolved, greater the rate of delivery) Henry"s law: conc of any gas dissolved in any fluid which depends on 2 factors: E. g. po 2 for blood, remember when we were talking about resp sys and used the term pressure? bc that determines how much oxygen will be dissolved in blood solubility of that gas in that fluid. In some animals which only store oxygen in their blood/hemolymph (like sea urchins), the only way they have ox present is in dissolved form. Most animals r not like that; they don"t have a mr/ox demand they have evolved a way to increase solubility of ox in their circ fluid through resp pigment (eg. hemoglobin/hb)
