KINE 1P90 Lecture Notes - Lecture 16: Bohr Effect, Haldane Effect, Carbamino
The pressure exerted by a single gas (o2, co2, n2) in air (a mixture of gases) = the sum of the pressures that each gas would exert independently. Partial pressure is usually denoted with a p in front of the gas (po2) Partial pressure = % concentration x total pressure of gas mixture. Po2 = 760mmhg x 0. 2093 = 159. 07mmhg. Pn2 = 760mmhg x 0. 7904 = 600. 7mmmhg. Increase in altitude = decrease in barometric pressure. Greater depth = greater total pressure (n2 in tank increases in pressure) N2 forced into blood stream and disuse. Gas always diffuses down its partial pressure gradient. Pulmonary capillary blood: decrease in o2 and increase in co2. Alveoli: increase in o2 and decrease in co2. Oxygen has diffused from lungs to the blood. Blood is composed of plasma (fluid) and blood cells. Rbc"s contain high hemoglobin (hb), which is an iron-protein compound.