EXERCISES, LESSON 1
INSTRUCTIONS: Answer the following exercises by marking the lettered response that best answers the exercise, by completing the incomplete statement, or by writing the answer in the space provided at the end of the exercise.
After you have completed all the exercises, turn to “Solutions to Exercises” at the end of the lesson and check your answers. For each exercise answered incorrectly, reread the material referenced with the solution.
1. How are waste products removed from the body’s cells?
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2. The solid portion makes up what percentage of the blood?
a. 55 percent.
b. 45 percent.
c. 7 percent.
d. 73.5 percent.
3. The spleen is an important source of:
a. Erythrocytes.
b. Granular leukocytes.
c. Non-granular leukocytes.
d. Red bone marrow.
4. The main functioning part of the red blood cell is the:
a. Hemoglobin.
b. Bilirubin.
c. Erythrocyte.
d. Red bone marrow.
5. All types of leukocytes will increase due to:
a. Reaction to toxic substances.
b. AIDS.
c. The presence of thrombin.
d. Leukemia.
6. The prime function of the leukocyte is to:
a. Form a scab following injury.
b. Destroy bacteria.
c. Build bones and teeth.
d. Transport iron.
7. The chemical which is released from the platelets to cause constriction in trauma is:
a. Folic acid.
b. Fibrinogen.
c. Prothrombin.
d. Serotonin.
8. To form a blood clot, blood parts are trapped in a thread network made of:
a. Prothrombin.
b. Thromboplastin.
c. Fibrin.
d. Plasma.
9. Dicumarol is frequently prescribed to:
a. Aid in clot formation.
b. Induce vessel constriction.
c. Stimulate the liver.
d. Block vitamin K action.
10. The most destructive mismatch of any blood group, for transfusion purposes, is the group called:
a. Rh.
b. Cartwright.
c. A-B-O.
d. MN.
11. Why is there a difference between a universal donor (blood type O) and a true universal donor (blood type O Rh-negative)?
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SOLUTIONS TO EXERCISES, LESSON 1
1. Waste products are picked up by the capillaries and transported by the blood to the excretory organs that then eliminate them from the body. (para 1-2b and glossary)
2. b (para 1-2c)
3. c (para 1-3)
4. a (para 1-3a)
5. d (para 1-3b(2))
6. b (para 1-3b(1))
7. d (para 1-6)
8. c (para 1-7a)
9. d (para 1-7c)
10. c (para 1-9) Note: This conclusion can be drawn from the fact than no other blood group mismatch will cause the blood to agglutinize.
11. A universal donor’s blood can be generally accepted, without adverse effect, by a person with any A-B-O blood type. If the blood transfused is type O Rh-positive and the recipient is an Rh-negative female, it can cause her blood to develop antibodies. These antibodies will fight the blood of an Rh-positive fetus she may carry during pregnancy. (para 1-10)