Composition of Blood in Humans Quiz
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Questions and Answers

What are the two main portions of blood in humans?

  • Platelets and Thrombocytes
  • Plasma and Formed elements (correct)
  • Nutrients and Wastes
  • Erythrocytes and Leukocytes
  • What percentage of the volume of blood do the formed (cellular) elements occupy?

  • 60%
  • 75%
  • 30%
  • 45% (correct)
  • What is the function of plasma in blood?

  • Assisting in blood clotting
  • Containing nutrients, wastes, salts, and proteins (correct)
  • Fighting off infections
  • Transporting oxygen to cells
  • Why is an anticoagulant added before spinning the whole blood in a centrifuge?

    <p>To prevent the blood from clotting</p> Signup and view all the answers

    Which component of blood forms a dense red pellet at the bottom of a centrifuge tube?

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

    What is the main function of blood in maintaining homeostasis?

    <p>Transporting oxygen from the lungs to body tissue and carbon dioxide from body tissue to the lungs</p> Signup and view all the answers

    Which statement accurately describes blood in mammals?

    <p>It is a liquid tissue that acts as a transport medium for various substances</p> Signup and view all the answers

    Which organ system is responsible for producing nutrients from the food we eat?

    <p>Digestive system</p> Signup and view all the answers

    What happens to blood during inhalation in the lungs?

    <p>Oxygen is transported from the lungs to body tissues by the blood</p> Signup and view all the answers

    Which part of the body do disease-fighting substances get transported to by blood?

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

    In the context of blood functions, what is the significance of maintaining internal body levels at a normal range?

    <p>It helps prevent excessive variation in essential bodily substances</p> Signup and view all the answers

    What is the main function of Red Blood Cells (RBCs) in the human body?

    <p>Transporting oxygen from the lungs to tissues and carbon dioxide from tissues to lungs</p> Signup and view all the answers

    What is the approximate size of a mature Red Blood Cell (RBC)?

    <p>7-8 µm in diameter</p> Signup and view all the answers

    Which element is essential for hemoglobin to effectively transport oxygen and carbon dioxide?

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

    What condition occurs when an individual has an insufficient number of red blood cells or inadequate hemoglobin?

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

    In what state does iron exist when combined with oxygen during the transportation process in the blood?

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

    Which blood disorder is characterized by a reduced ability of the blood to carry oxygen effectively?

    <p>Iron-deficiency anemia</p> Signup and view all the answers

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