The Essential Functions of Blood

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Questions and Answers

What is the approximate composition of plasma in blood?

  • 35%
  • 55% (correct)
  • 45%
  • 65%

Which cells make up approximately 45% of the blood?

  • T cells, B cells, Natural Killer cells
  • Neutrophils, Lymphocytes, Monocytes
  • Erythrocytes, Leucocytes, Thrombocytes (correct)
  • Basophils, Eosinophils, Macrophages

What is one of the functions of blood related to respiration?

  • Transporting CO2 from the lung to the tissue and O2 from the tissue to the lung
  • Producing O2 in the lung and utilizing CO2 in the tissue
  • Carrying O2 from the lung to the tissue and CO2 from the tissue to the lung (correct)
  • Regulating the temperature of the lung and tissue

In addition to transporting hormones, what other function does blood serve?

<p>Immunity: transporting leucocytes, antibodies (A)</p>
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