Reconstruction was the attempt to rebuild and reform the South politically, economically, and socially after the Civil War, and to refashion race relations throughout the nation. Historians. of the era have focused on four questions: How much change was there between the antebellum.
The second function is to transport various nutrients, food molecules and elements throughout the body. Red blood cells move oxygen, while plasma carries the nutrients and proteins. Plasma is made up of mostly water, but it also consists of salts, lipids, proteins and sugar. Although plasma is part of the blood, it carries these materials from other parts of the body.
Blood Constituents. Blood consists of blood cells and plasma. If blood is treated with an anticoagulant and centrifuged, the blood cells sediment leaving a supernatant of clear plasma. Blood Cells. The sedimented blood cells account for 35-50% of the volume of blood and are of three basic types. erythrocytes or red blood cells; leucocytes or white blood cells