Blood Components and Cell Production Quiz
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Questions and Answers

What is the main purpose of using anticoagulants when separating plasma from blood?

  • To enhance the formation of the buffy coat in the separated plasma
  • To produce a more straw-colored and hazy plasma sample
  • To prevent the conversion of fibrinogen to fibrin, which would cause the blood to clot (correct)
  • To increase the centrifugal force on the blood sample during separation
  • What is the primary purpose of centrifuging a blood sample to separate serum?

  • To increase the concentration of formed cellular elements in the serum
  • To speed up the clotting process and facilitate the conversion of fibrinogen to fibrin
  • To enhance the formation of the buffy coat layer in the separated serum
  • To separate the plasma and serum fractions based on their different densities (correct)
  • What is the main difference between plasma and serum in terms of their composition?

  • Serum contains more formed cellular elements than plasma
  • Serum is slightly hazy, while plasma is straw-colored
  • Plasma contains the buffy coat, while serum does not
  • Plasma contains fibrinogen, while serum does not (correct)
  • How long must a blood sample be allowed to clot before it can be centrifuged to separate the serum?

    <p>At least 30 minutes</p> Signup and view all the answers

    What is the primary factory of production of blood cells in adults?

    <p>Bone marrow</p> Signup and view all the answers

    What is the characteristic feature of White Blood Cells (Leukocytes) when viewed under a microscope?

    <p>Purple center nucleus</p> Signup and view all the answers

    Which site is responsible for blood cell formation in fetuses?

    <p>Yolk sac</p> Signup and view all the answers

    Where does the initial commitment of hematopoietic stem cells to the lymphoid or myeloid lineage occur?

    <p>Red bone marrow</p> Signup and view all the answers

    Which cellular element of the blood is responsible for transporting oxygen and carbon dioxide?

    <p>Erythrocytes (Red blood cells)</p> Signup and view all the answers

    What is the main function of the buffy coat layer in a centrifuged blood sample?

    <p>It indicates the presence of a high concentration of formed cellular elements</p> Signup and view all the answers

    Which of the following is NOT a key step in the process of blood clotting?

    <p>Platelet activation and aggregation</p> Signup and view all the answers

    What is the life span of platelets (thrombocytes)?

    <p>9-12 days</p> Signup and view all the answers

    Which of the following cellular components of blood are involved in the body's immune response?

    <p>Leukocytes (white blood cells)</p> Signup and view all the answers

    Which cellular component of blood is responsible for transporting oxygen to body tissues?

    <p>Erythrocytes (red blood cells)</p> Signup and view all the answers

    Which blood component determines an individual's blood type?

    <p>Antigens found on Red Blood Cells</p> Signup and view all the answers

    Which of the following is the primary site of erythropoiesis (red blood cell formation) in adults?

    <p>Red bone marrow</p> Signup and view all the answers

    What is the primary site of thrombopoiesis (platelet formation) in adults?

    <p>Red bone marrow</p> Signup and view all the answers

    Which of the following cellular components of blood are involved in hemostasis (the process of stopping bleeding)?

    <p>Platelets</p> Signup and view all the answers

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