100%(5)5 out of 5 people found this document helpful
This preview shows page 1 - 3 out of 8 pages.
Chapter 17: Blood AssignmentFor this assignment, please read the chapter and answer the questions below. Please type your answers in red or blue color. Please note that points may be deducted if answers are not submitted in these colors.There is a tutorial on blood cells in Blackboard under the Lab Tutorial button. Useit to study the different kinds of blood cells. Under the External Links buttonBlood Functions: Understand the following functions of Blood.i) Transport Nutrients, Hormones, Wastesii) Regulates Body Temperatureiii) Provides Protection (Immune Response, Hemostasis)Blood Composition: write a short description of each of the following components of bloodPlasma- Non-living fluid matrix. 55% of whole blood. Least dense component; 90% water over 100dissolved solutes. Straw colored, sticky fluid. Electrolytes outnumber the other solutes. Plasma proteinsare most abundant solutes by weight.Proteins- Stays in the blood; not taken up by cells. Produced mostly by liver. 60% albumin; 36%globulins; 4% fibrinogen. All contribute to osmotic pressure and maintain water balance in blood andtissues. 8% of plasma weight.Electrolytes- Most abundant solutes by number; cations include sodium, potassium, calcium,magnesium, anions, include chloride, phosphate, sulfate and bicarbonate; help to maintain plasmaosmotic pressure and normal blood pH.Gases- Oxygen and Carbon Dioxide; Oxygen mostly bound to hemoglobin inside RBC’s. Carbondioxide transported dissolved as bicarbonate ion or carbon dioxide, or bound to hemoglobin in RBCs.Water- 90% of plasma volume; dissolving and suspending medium for solutes of blood; absorbs heat.Nutrients- Materials absorbed from digestive tract and transported for use throughout the body;includes glucose and other simple carbohydrates, amino acids, fatty acids, glycerol and triglycerides,cholesterol and vitamins.Wastes- Metabolic wastes are by-products of cellular metabolism such as urea, uric acid, creatinineand ammonium salts.Formed Elements (cells): Briefly describe the functions for the following cells:Table 17.2 on page 644 in the textbook gives you a summary of the formed elements of the blood.1