Blood+Homework-Faith

=__**Blood**__= = = (1) What are the functions of blood, and what are its two main portions? (2) What is the composition of plasma and what are the functions of plasma proteins? (3) What substances allow red blood cells (RBCs) to transport oxygen? (4) Why do RBCs have a bioconcave shape? (5) Name and describe three disorders associated with RBCs. (6) What are the different blood types and what determines blood type?
 * the primary transport medium
 * defends the body against invasion by pathogens in several ways
 * has regulatory functions
 * formed elements
 * plasma
 * various salts (ions)
 * organic molecules
 * water
 * take up and release hydrogen ions
 * keep blood pH around 7.4
 * Hemoglobin
 * gives them a greater surface area for the diffusion of gases into and out of the cell
 * anemia
 * Hemolysis
 * sickle-cell disease
 * A, B,O

(7) When does hemolytic disease in a newborn occur?

(8) Tell how the functions of the cardiovascular system contribute to homeostasis? (9) In what way does the liver contribute to the functioning of the cardiovascular system?