BIOL 4160 : Test 3 Vert Phys
Document Summary
Represents about 8% of total body weight. Average volume: 5 liters, consists of 3 types of specialized cellular elements suspended in plasma (liquid portion of blood, erythrocytes, red blood cells. Important in 02 transport: leukocytes, white blood cells. Immune system"s mobile defense units: platelets, cell fragments. Figure 11. 1: over half of the blood would be plasma, about 99% of your blood is either plasma or red blood cells. Plasma proteins: compose 6% to 8% of plasma"s total weight, 3 groups of plasma proteins, albumins, most abundant plasma proteins, helps maintain osmolarity of blood, globulins. Immune system proteins: fibrinogen, key factor in blood clotting. Pigment containing iron: appears reddish when oxygenated, appears bluish when deoxygenated. Molecule consists of 2 parts: globin portion, protein composed of four highly folded polypeptide chains (quaternary structure, heme groups, four iron-containing non-protein groups, each is bound to one of the polypeptides.
