KINE 2011 Study Guide - Blood Gas Tension, Red Blood Cell, Reversible Reaction

• School: York University
• Department: Kinesiology & Health Science
• Course: KINE 2011
• Professor: Gillian Wu

Document Summary

Oxygen in blood is carried in 2 forms (1) dissolved in blood. At normal arterial po2 of 100mmhg , only 3ml o2 can be transported in dissolved form for every liter of blood (3ml o2/l blood) (2) chemically bound to haemoglobin. 98% of the o2 in the blood is carried in this manner. Hb is an iron bearing protein molecule located within red blood cells (erythrocytes) Major function of hemoglobin is o2 and co2 transport. Hb molecule is a tetramer of two alpha & two beta polypeptide chains (globin subunits). Each of these four subunits in turn are associated with an iron- containing heme group The iron portion of the heme groups interacts with the o2. Percent hb saturation (%so2) is a measure of the extent to which. At 100% saturation, the carrying capacity of hb for o2 is 1. 34 ml o2/gram hb. Hb is present in the blood in 2 forms.