Chapter 17: Blood Assignment For 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. Use it to study the different kinds of blood cells. Under the External Links button Blood Functions : Understand the following functions of Blood. i. i) Transport Nutrients, Hormones, Wastes ii. ii) Regulates Body Temperature iii. iii) Provides Protection (Immune Response, Hemostasis) Blood Composition: write a short description of each of the following components of blood Plasma- Combination of enzymes, proteins, wastes, nutrients, gases, and hormones Proteins- 8% of plasma weight, contribute to osmotic pressure and maintain water balance in blood Electrolytes- outnumbers the other solutes, cations include: sodium, potassium, calcium, magnesium, anions include: chloride, sulfate, phosphate, and bicarbonate, helps to maintain plasma osmotic pressure and regulate blood pH Gases- Carbon dioxide and oxygen, carbon dioxide transported dissolves as bicarbonate ion or CO2 or bound to hemoglobin in RBCs, oxygen is usually bound to hemoglobin inside RBCs Water- 90% of plasma volume, suspending and dissolving medium for salutes of blood, absorbs heat Nutrients- Things absorbed from digestive tract and transported for use through the body, contains glucose and other simple carbs, amino acids, fatty acids, glycerol and triglycerides, vitamins, and cholesterol

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 formedelements of the blood. Red Blood Cell (RBC) = Erythrocyte