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| Description: a. Red blood cells enmeshed in the insoluble strands of a fibrin clot. b. Electron micrograph of part of a fibrin fiber. c. Schematic view of how fibrin monomers are thought to associate to form a fiber. Removal of fibrinopeptides A and B from fibrinogen by thrombin makes sites accessible for association with complementary sites a and b on adjacent monomers. The molecules are believed to overlap as shown because the striations seen in the fibers are 23 nm wide, exactly half the length of the fibrinogen molecule. Picture Stats: Views: 286 Filesize: 296.06kB Height: 516 Width: 632 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=34435 |